PRIOR REFERENCES AND STUDIES

The earliest direct record of a mosaic-encrusted bird's head sculpture in the Gotha collections is an entry in the second volume of the 1840 Inventarium der Herzogl. Kunst-Kammer auf Friedenstein. In the section on American objects, entry number 14 on page 64 reads: “The upper part of a bird's head, manufactured of mahogany and covered with pieces of turquoise, malachite, red coral, and mother-of-pearl” (Das Obertheil von dem Kopfe eines Vogels aus Mahagoniholz verfertigt und mit Türkisen, Malachit, rothen Korallen und Perlmutterstückchen besetzt) (Anonymous 1840: vol. II, p. 64). The entry also states the object had been recorded in a now-lost 1830 inventory of the same collection and it was “bought by valet Buttstädt in Rome.” The same description, together with the reference to the 1830 inventory (now stating that the object was recorded in entry 93, folio 58), is repeated in a later inventory of 1852. A few years earlier, in 1846, another Kunst-Kammer inventory was published by Bube (Reference Bube1846:68), in which the author stated, “Although it was bought in Rome, it probably originated from a Mexican idol,” thus asserting for the first time the correct cultural attribution of the artifact. Both the 1830 and 1840 inventories were carried out during the dukedom of Ernst I of Saxe-Coburg-Gotha (1826–1844). Nevertheless, the references to valet Buttstädt and to Rome make clear that the arrival of the object in Gotha was related to his predecessor, Friedrich IV, who became Duke of Saxe-Gotha-Altenburg in 1822 and who, before that time, spent long periods of his life in Rome. We will return to this individual in the final section of the article on the provenance of the artifact.

Given the thorough history of scholarly studies on the Gotha bird's head sculpture by Schwarz (Reference Schwarz2013), we offer only a brief synthesis. The earliest mention of the artifact specifically addressed to the Mesoamericanist community is from Italian paleoethnologist Pigorini (Reference Pigorini1885:3, n5) who, in an article on the mosaics he had just secured for his museum in Rome, stated that a similar one was “maybe in Gotha,” adding in a footnote that he was informed of the object's existence by [Augustus Wollaston] Franks—then at the British Museum's Department of Antiquities—but that he was unaware “if it really exists and where it is.” The sculpture was then described in detail by the geographer and ethnographer Andree (Reference Andree1888, Reference Andree1889, Reference Andree1890), who examined it thanks to the help of Aldenhoven, then Director of Gotha's Ducal Museum. In the 1889 publication, which includes two excellent color lithographs of the object (Figure 1), Andree (Reference Andree1889:129, Reference Andree1890:147) stated it “was brought by a valet of Duke Friedrich IV of Saxe-Gotha-Altenburg in the first decades of our century from Rome and comes from the collections of the local Jesuits.” Andree (Reference Andree1889:128–129, Reference Andree1890:148) identified the artifact as the representation of a woodpecker or a crow, adding that the “stylized figure of a parrot” appears on the animal's forehead.

Figure 1. Lithographs of the sculpture known as the Bird Head published by Andree (Reference Andree1889): (a) Plate VIII, lateral view of the Bird Head; (b) Plate IX, top view and underside of the Bird Head.

Later references to the Gotha sculpture were penned by Oppel, Lehmann, Pogue, Saville, and Seler. The geographer Oppel (Reference Oppel1896), in an article on turquoise mosaics published in the Globus journal, reproduced a long, direct citation from Andree's Reference Andree1889 work and included a black-and-white drawing of the object clearly created after Andree's lithograph. Lehmann (Reference Lehmann1906:319) briefly mentioned the Gotha piece—again drawing on Andree's Reference Andree1889 work—in an erudite article also published in Globus, in which he speculated the Mesoamerican mosaics in European collections were some of the gifts received by Cortés and Juan de Grijalva from Indigenous elites. Pogue, in turn, succinctly referred to the bird's head in an article (Pogue Reference Pogue1912:445, 449), as well as in a book on turquoise (Pogue Reference Pogue1915:93, 95–96), repeating information from Andree's text and even publishing a black-and-white reproduction of one of Andree's Reference Andree1889 lithographs upside down. Saville (Reference Saville1922:48, 81) included another concise mention of the object in his famous book Turquois Mosaic Art in Ancient Mexico, where he published a new black-and-white drawing, arguably based again on Andree's lithographs (Saville Reference Saville1922:Plate XXXIVB). The following year, in a contribution on Mexican mosaics also drawing on Andree's work, Seler (Reference Seler and Seler1967 [1923]:365) simply stated that “the excellent piece in Gotha is a bird mask.”

After these early contributions, references to the Gotha bird's head have been quite cursory, some illustrated with the same color photo (e.g., Anton Reference Anton1986; Duyvis Reference Duyvis1935; Eberle Reference Eberle2010; Izeki Reference Izeki2008; Steguweit Reference Steguweit1985; Toscano Reference Toscano1984 [1944]). As far as we know, it was Toscano (Reference Toscano1984:179) who first affirmed in 1944 that the sculpture represented the Nahua Wind God—known as Ehecatl and Quetzalcoatl—as a “stylized bird head,” an identification that was not supported by a systematic iconographic analysis, but that was repeated by later authors without additional arguments (e.g., Izeki Reference Izeki2008:139; Schwarz Reference Schwarz2013:31–32). The relative oblivion into which this marvelous piece had fallen among Mesoamericanists finally ended with the above-mentioned study by Schwarz (Reference Schwarz2013), in which the author provided stimulating interpretive insights. Schwarz, who published two new photos of the object, also stressed the potential relevance of scientific analyses, which remain to be done in the future.

PHYSICAL FEATURES AND ICONOGRAPHY

Most authors who have discussed the Gotha piece simply state that it represents a bird's head, with no further indication of the avian species and its possible symbolism; only Andree (Reference Andree1889:128–129) has proposed it might be a woodpecker or a crow. Another line of interpretation identifies the object as the head of the Nahua Wind God, Quetzalcoatl Ehecatl. Our description and analysis of the physical features of the piece and its iconography enable us to provide a more thorough interpretation of it as a sculpted image of the Postclassic Nahua and Mixtec Wind God and culture hero—generally known in these societies as Quetzalcoatl Ehecatl and 9-Wind—as well as to characterize the specific aspects of this entity manifested in this particular representation. This in-depth study led us to request our colleague, an expert in archaeological art, Nicolas Latsanopoulos, to recreate the original appearance of the Bird Head sculpture in a series of drawings included in the present article. We invite readers to refer to them, with the caveat that, due to the fragmentary character of some sections of the mosaic, the proposed reconstruction is hypothetical in some respects and inspired by what we observed in the rest of the artifact (compare Figures 2–4).

Figure 2. Recreation of the original appearance of both sides of the Bird Head sculpture and top view. Drawings by Nicolas Latsanopoulos.

The sculpture is made of a single piece of wood (length = 30 cm, height including the top wooden knob = 13.5 cm, and width =16.5 cm), which presents a few cracks that were consolidated at some point, but remain visible on its inner surface and even in specific areas of its outer surface—for example, on the right side of the top of the head, from the back edge of the sculpture to the upper part of the eye socket (right and left are meant from the point of view of the bird, not of the viewer) (Figures 3, 5, and 6). Although the earliest available reference to the object (1840 inventory) states the wood is mahogany, it appears to be an unfounded guess; lack of scientific studies precludes the identification of the origin of the wood support. Furthermore, it is worth remembering that analyses of other Mesoamerican mosaic-encrusted wood sculptures in the British Museum revealed that most of them were carved of Cedrela odorata, with two exceptions: a shield made of Pinus sp. and a small animal head carved of Erythrina coralloides (Cartwright et al. Reference Cartwright, Stacey, McEwan, King, Carocci, Cartwright, McEwan and Stacey2012:7–12; McEwan et al. Reference McEwan, Colin, Cartwright and Stacey2006:35). The visual appearance of the Bird Head's wood suggests it could be Cedrela odorata.

Figure 3. Right side of the Bird Head sculpture. Photograph by Domenici ©Stiftung Schloss Friedenstein, Gotha.

The outer surface of the wood piece was carefully carved to create a shape suggesting a bird head with a long, sharp bill in the front, with anthropomorphic and fantastic features (Figures 3 and 4). A prismatic protuberance topped by a volute starts between the eyes and projects on top of the bill. The eyes, in turn, were deeply cut in the wood's surface making it so thin that it cracked in the lower part of the left eye socket, where a tiny fragment of wood is now missing (Figures 4 and 7a). Other parts of the head, for instance the eyebrows, the edges of the bill, and the “lips” were also delicately outlined through woodcarving. The top of the head is crowned by a flat wooden bar, devoid of any mosaic, with a trapezoidal knob in the center. On the right side, this bar has a notch that might have resulted from a blow to the piece, which probably produced the above-mentioned crack. At the back of the head, just below the edges of the wooden bar, there is a perforation on each side (Figures 3–5). The piece of wood was cut out in its interior to produce a concave opening when seen from below or the back. The inner surface was roughly hewn and shows the wedge-shaped marks left by the sculptor's tools (Figure 6), as in other sculptures of this kind (McEwan et al. Reference McEwan, Colin, Cartwright and Stacey2006:40). Given the hollowed out opening in the back, the artifact has been repeatedly interpreted as a mask as discussed below, but the hollow part is far too narrow and not at all flat as to allow its placement on a human face (Figures 6 and 8).

Figure 4. Left side of the Bird Head sculpture. Photograph by Domenici ©Stiftung Schloss Friedenstein, Gotha.

Figure 5. Right side of the Bird Head sculpture, detail of the eye, temple, and flat wooden bar with a notch. Photograph by Domenici ©Stiftung Schloss Friedenstein, Gotha.

Figure 6. The Bird Head sculpture seen from the back. Photograph by Domenici ©Stiftung Schloss Friedenstein, Gotha.

Figure 7. Details of the left side of the Bird Head sculpture: (a) the eye socket; (b) the back of the head; (c) section with pink tesserae at the bottom of the head; (d) tesserae and pigments on the front edge of the wood bar at the back of the head; (e) and the mosaic under the eye. Photographs by Domenici ©Stiftung Schloss Friedenstein, Gotha.

Figure 8. The carved interior of the Bird Head sculpture. Photograph by Domenici ©Stiftung Schloss Friedenstein, Gotha.

Almost the entire outer surface of the wood was covered in mosaic. The 1840 inventory indicates it was made of turquoise, malachite, red coral, and mother-of-pearl. Although the constituent materials of this piece have not been scientifically analyzed, clearly the green palette of the mosaic includes turquoise and some of the various minerals known as cultural turquoise (such as chrysocolla, azurite, amazonite, etc.; Weigand Reference Weigand1993:300–303; Weigand et al. Reference Weigand, Harbottle, Sayre, Earle and Ericson1977:16), as well as malachite, materials often found in other Late Postclassic mosaics (McEwan et al. Reference McEwan, Colin, Cartwright and Stacey2006:27–30; Melgar Tisoc et al. Reference Tisoc, Emiliano, Ciriaco and Desruelles2018; Stacey et al. Reference Stacey, Cartwright, Verri, McEwan, King, Carocci, Cartwright, McEwan and Stacey2012; Thibodeau et al. Reference Thibodeau, Luján, Killick, Berdan and Ruiz2018). The turquoise and/or cultural turquoise are in two tones—a light green and a bright blue-green—while the malachite creates darker zones of green. The light-green and brilliant blue-green gemstones cover most of the sculpture. The light tone tesserae are irregular in size and shape and cover peripheral areas of the object, filling areas in between forms, thus constituting a sort of background (Figures 7b and 9a). By contrast, the vibrant blue-green tesserae and the dark green ones are smaller, generally square, forming harmonious mosaics principally used to create the designs that compose the figure, as discussed below. Apart from its less meticulous craftsmanship, the light-green mosaic sections are also the areas where we detected a reused tessera—specifically on the left side of the protuberance (Figure 4).

Figure 9. Details of the right side of the Bird Head sculpture: (a) the back of the head; (b) the curved part of the lips and tooth; (c) the tip of the bill. Photographs by Domenici ©Stiftung Schloss Friedenstein, Gotha.

Beyond green gemstones, the mosaic includes other materials that make the sculpture not only polychrome, but also a multimedia artwork (Caplan Reference Caplan2019:14–15; Domenici Reference Domenici2020), which involves shells and organic substances. Based on our visual inspection, we posit that the red tones were not obtained from coral as proposed by early observers; instead, we suggest these tesserae were made of Spondylus sp. shells, as in other Mesoamerican mosaic pieces (Cartwright et al. Reference Cartwright, Stacey, McEwan, King, Carocci, Cartwright, McEwan and Stacey2012:12; McEwan et al. Reference McEwan, Colin, Cartwright and Stacey2006:32–34; Velázquez et al. Reference Velázquez Castro, Arellano and Maldonado2014). These tesserae were primarily employed to create specific motifs, as well as the background highlighting an important figure on the forehead (Figure 10a). We have detected two red tones in the Gotha Bird Head. An intense red was used to create the lips seen on the bill, the background of the forehead figure, and various other details, while a lighter tone, tending to pink, was applied on the lower parts of the piece (Figures 3, 4, and 7c). The mosaic also displays two types of white tesserae: a lustrous yellowish white that can be tentatively identified as mother-of-pearl (Pinctada mazatlanica), and a matte white (Figures 5 and 11), which is probably Strombus sp. based on results from scientifically analyzed specimens (Cartwright et al. Reference Cartwright, Stacey, McEwan, King, Carocci, Cartwright, McEwan and Stacey2012:12; McEwan et al. Reference McEwan, Colin, Cartwright and Stacey2006:32–34).

Figure 10. Detail of the forehead and top of the head of the Bird Head sculpture. (a) Photograph by Domenici ©Stiftung Schloss Friedenstein, Gotha. (b) Drawing by Nicholas Latsanopoulos.

Figure 11. Detail of the right side of the Bird Head's protuberance. Photograph by Domenici ©Stiftung Schloss Friedenstein, Gotha.

Finally, the mosaic on the artifact includes two types of blackish materials. One appears only in a small black-and-white motif repeated several times on the piece (Figures 5, 9b, and 11). Its appearance is dull and from what is known from other mosaics it might be lignite (McEwan et al. Reference McEwan, Colin, Cartwright and Stacey2006:30). The second blackish material is clearly not mineral in origin and is actually a very dark brown substance with golden reflections, which served to create the fan-shaped areas behind the figure's eyes (Figures 3, 4, and 9a). We believe it might be an application of the adhesive used to make the mosaic, which is seen in the parts where the tesserae are lost. It is worth remembering that on other mosaic-encrusted objects, a resin (in one instance mixed with beeswax) was used to shape three-dimensional details, perhaps originally covered with gold leaf, as on one of the masks and the shield in the British Museum (McEwan et al. Reference McEwan, Colin, Cartwright and Stacey2006:50, 64). Andree (Reference Andree1889:129) suggested the adhesive employed to create the mosaic on the Gotha sculpture might have been asphalt, but analyses performed on similar artworks revealed a predominance of resins extracted from Pinaceae, at times mixed with copal resins extracted from Burseraceae (Bursera sp.; Protium sp.) and beeswax (McEwan et al. Reference McEwan, Colin, Cartwright and Stacey2006:35–37, 40–41; Pecci and Mileto Reference Pecci and Mileto2017; Stacey et al. Reference Stacey, Cartwright and McEwan2006). A specific group of Mixtec mosaics shows the use of a visually different material, a gritty cement containing conifer resin, at times mixed with different kinds of wax (Berger et al. Reference Berger, Moreau, Lemaitre, Martinez, Sears and Seig2021; Domenici Reference Domenici, Martinez, Sears and Seig2021a; McEwan et al. Reference McEwan, Colin, Cartwright and Stacey2006:37; Montero Reference Montero1968; Newman Reference Newman2002; Saville Reference Saville1922:76).

In addition to the polychrome and multimedia character of the gemstone and shell mosaic, the Gotha head exhibits minute pigment remains. We observed traces of a blue-green pigment on the front edge of the flat wooden bar on top of the head, inside and below an eye socket, and on the inner surface of the piece, while a white pigment was applied in the interstice between the figure's lips. In some instances, the blue-green pigment appears where tesserae were once applied, suggesting its visibility may be due to the loss of the tesserae and the adhesive. This is the case of the wooden bar at the back of the head, which consists of exposed wood except for the narrow frontal edge that was originally covered with blue-green tesserae (Figure 7d). The situation of the figure's right eye is comparable, since we noted a tiny trace of blue-green pigment on its lower edge and a blue-green tessera stuck on its upper edge (Figure 5). This evidence coincides with historical testimonies, which describe objects encrusted with mosaics first being painted, for the artists who applied the gemstones and shells to follow the guidelines outlined with pigments on the wood support (e.g., Toscano Reference Toscano1984:174–175). Interestingly, traces of paint—with pigments such as cinnabar, red ocher, and indigo-based Maya blue—in areas not covered by mosaic have been detected on other specimens (McEwan et al. Reference McEwan, Colin, Cartwright and Stacey2006:47, 50, 53). Additionally, on the lower part of our sculpture, the adhesive used to affix now missing Spondylus tesserae shows a reddish coloration, but we cannot say if the glue was colored or if a red pigment was applied beneath the adhesive; a similar reddish coloration under a missing Spondylus tessera has been noted on the mosaic-covered Yacatecuhtli mask at the Museo delle Civiltà in Rome (Domenici Reference Domenici2020). For comparative purposes, it is worth recalling that hematite-colored resins were used to attach the teeth of a mask and the double-headed serpent in the British Museum; in those cases, such material was probably aimed at representing the red gum between the teeth (McEwan et al. Reference McEwan, Colin, Cartwright and Stacey2006:50, 57).

At first sight, the most remarkable element of the Gotha sculpture is certainly the bird's bill that spans three quarters of the artifact's length. Its delicate mosaic decoration is primarily based on a pattern of alternating bands of green tones that differs on the upper and lower parts of the bill—that is, above and below the lips—and that is not strictly symmetrical on the right and left sides of the head. On the rear “half” of the bill, the upper part has four bands—more or less rectangular—of blue-green and light-green mosaic, which alternate in a neat chromatic rhythm, but are not symmetrical on the two sides of the object (compare Figures 3 and 4). In this upper section, the work is particularly meticulous: the tesserae are often nearly squared, and most are smaller than those on the lower part—as in the rest of the mosaic, however, the blue-green tesserae are decidedly smaller than the light-green ones (Figures 3, 4, and 9b). In contrast, light-green tesserae predominate in the lower section of the bill where the irregularity in tesserae size and shape stands out. The pattern of bands is subtler here, for light-green bands alternate with darker and somehow multicolor bands, in which a predominantly light-green mosaic is spotted with dark green and blue-green tesserae (Figures 3, 4, 7c, and 9b). In general, the lower part of the bill and the peripheral zones of the piece display less care in their execution, as illustrated, in particular, by the size and shape of the tesserae. In fact, the darker bands in the lower part of the bill were perhaps manufactured with the leftover tesserae after the creation of the principal sections of the object.

On the front “half” of the bill, the decoration increases in complexity, incorporating bands of malachite that along with the bands of blue-green and light-green tesserae create the following chromatic pattern: blue-green, dark green, light green, blue-green, dark green (Figures 3, 4, and 9c). The preservation of these tesserae bands deteriorates moving toward the tip of the bill: only one tessera remains in the last band of malachite on the left side and a few on the right side, while the end of the bill is now completely bare (Figure 9c). Our close examination of the object, however, revealed that on the immediate edge of the last—almost completely lost—band of malachite, the remaining adhesive retains traces of the tesserae that were once affixed there. If we follow the chromatic pattern created by the bands of different green tones in this section of bill, this last band of tesserae should have been light green, a hypothesis consistent with the large size of the marks left by the missing tesserae on the adhesive. The very tip of the bill, in contrast, does not hold any clue that could lead us to determine its original appearance; however, the color sequence observed in this section again suggests it might have been covered by blue-green tesserae.

Besides its band decoration, the bill of the Gotha sculpture also had red (Spondylus), black (lignite?), and white (mother-of-pearl and Strombus shell?) tesserae, introducing some naturalistic features in this section, while enhancing the beauty and impact of the whole piece, for this masterful blend of materials turns it into a veritable polychrome masterpiece. In particular, large elongated Spondylus tesserae—virtually all lost on the lower part of the bill, although their marks remain on the adhesive—represent the lips (Figures 3, 4, 9b, and 9c). This red portion of the mosaic thus outlines the figure's mouth, which is almost closed with only a narrow interstice dividing the upper and lower lips, where we observed vestiges of a white pigment. We should emphasize that although the mouth is particularly long—and remarkable in the object, due to the chromatic contrast between the green tesserae of the bill and the red of the lips—it does not reach the tip of the bill. In fact, the last and almost completely lost bands of tesserae originally wrapped themselves like ribbons around this protruding tip, without any interruption by the red tesserae of the lips—although, in this section, the interstice between the lips was carved and is still visible in the wood support (Figures 3 and 9c). At the other end of the bill, connecting the upper and lower lips, curved segments of red mosaic are made of a unique semi-circular Spondylus tessera on the right side and three triangular ones on the left side (Figures 3, 4, and 9b).

Right beside these curved sections, the lower part of the mouth has wider zones of irregular red tesserae evoking gums where teeth were added below (Figures 3, 4, and 9b). Only one of the teeth was preserved on the right side of the head, but thanks to the marks visible on the adhesive we know that three of them were originally placed on each side. The remaining tooth is made of a unique tessera of white shell that exhibits a vertical incision on the lower part (Figure 9b). This said, while the irregular appearance of these red sections of the mosaic evokes the texture of gums, the original rows of three teeth seem to emerge, in a counterintuitive way, from the lower edge of the lower lip/gum, instead of being placed over it as one would expect. In our view, this should be interpreted as a stylistic convention, since a similar configuration is seen on the Copenhagen Xolotl head, pertaining to the same stylistic “family” of mosaics (Domenici Reference Domenici2020). Additionally, the intentional use in these specific sections of the mouth of small, irregular Spondylus tesserae instead of the usual, rectangular elongated ones might suggest another identification. Indeed, this technical detail, as well as the apparently erroneous representation of the teeth beneath the lower lip, lead us to suggest that these red sections over the teeth do not represent gums or part of the lower lip, but rather the sagging, scalloped edge of the upper lip, which is a distinguishing trait of Ehecatl (Figure 12b), also seen on Xolotl, for example in the Codex Borgia (Anders et al. Reference Anders, Jansen and García1993b:Plate 65).

Figure 12. The god Quetzalcoatl Ehecatl in Postclassic Nahua imagery. (a) Full-length Wind God statue from Calixtlahuaca. (b) Quetzalcoatl Ehecatl, Codex Borgia, Plate 19, detail. (c) Quetzalcoatl Ehecatl, Codex Laud, Plate 23, detail. Drawings by Nicolas Latsanopoulos. (d) Quetzalcoatl Ehecatl, Codex Borbonicus, Plate 22, detail. ©Bibliothèque de l'Assemblée nationale, Paris. (e) Face of Quetzalcoatl Ehecatl in the “manta del ayre,” Codex Magliabechiano, f. 7v, detail. Drawing by Nicolas Latsanopoulos. (f) Priest or human embodiment of Quetzalcoatl Ehecatl, Codex Borbonicus, Plate 26, detail. ©Bibliothèque de l'Assemblée nationale, Paris.

Moving toward the front part of the bill, after these sections of sagging lips and teeth, both sides of the sculpture display small areas in which all the tesserae are lost (Figures 3, 4, and 9b). The marks on the adhesive, however, reveal that these areas perhaps included another series of tesserae referring to the flaccid upper lip of Ehecatl—because these sections are of similar dimensions to those of the preserved areas discussed above—and a large single tessera. On the left side, it had a rectangular shape and might have been another tooth, but on the other side of the head the mark left by the corresponding tesserae shows a puzzling large rounded shape (Figure 9b). Other enigmatic sections are the rectangular areas at the very bottom of the head, slightly behind the bill. These areas were encrusted with large irregular pinkish tesserae that are almost completely lost on the right side of the head and fortunately better preserved on the left side (Figure 7c); the adhesive where the mosaic is missing shows a reddish hue.

As we have shown, the multiple colors and diverse materials used in the decoration of the Gotha Bird Head served to outline naturalistic features, while they transformed the piece into a polychrome work highly valued and prized by its creators (Dupey García Reference Dupey García2021). This polychromy is the hallmark of a specific style in extant mosaic objects—probably developed in a specific region, period, or by certain artistic schools or workshops—that is represented in only one of the “family” of mosaics held in early European collections (Domenici Reference Domenici2020). Moreover, not only the multimedia and polychrome character of the Gotha mosaic-encrusted sculpture, but likewise some specific motifs in its decoration are found in this specific “family” of Postclassic, central Mexican mosaics. This is the case of three ornamental designs employed along the bill: the polychrome series of disks, the stellar eye, and what we call the black-and-white motif. The polychrome series of disks, which the senior author interpreted elsewhere as qualifying the object as “precious” (Domenici Reference Domenici2020), can cluster two, three, and even four round tesserae—or, more rarely, groups of tiny tesserae that form disks—made of different materials and colors, some of which are missing today. The lower part of the bill presents groups of only two disks. In the upper part of the bill, where the decoration is richer, a missing series of disks was originally located on the ridge, right in front of the prismatic protuberance, while others are placed right above the upper lip, in what seems to be a continuous line of disks following the shape of the bill (Figures 3 and 4). A closer look at this section, however, reveals that each series of three or four disks is included in a specific band of the green toned mosaic (Figures 3, 4, 9a, and 9b), thus increasing the complexity of this decoration with the introduction of other media, multiple colors, and the various manifestations of shine generated by the gemstones and shells.

Sometimes, one of the disks in these polychrome series is replaced by a more complex motif that is well-known in Postclassic imagery and commonly called “stellar eye.” On the bill, it appears as part of the series of disks on the upper lip (Figures 4), but it also occurs alone, for example in the dark green mosaic “ribbon” at the tip of the bill (Figure 9c). The stellar eye is round or oval in shape and is composed of a red “half” made of Spondylus and a white “half” made of shell, in which a three-quarter circle is traced in black (Figures 3, 4, and 9b). In the Gotha Bird Head as well as in other mosaic-encrusted objects from the same stylistic “family,” this three-quarter circle was incised into the white shell and filled with a black substance, probably the adhesive used to glue the tesserae. This manufacturing technique, already noted by McEwan and colleagues (Reference McEwan, Colin, Cartwright and Stacey2006:76) on a knife in the British Museum, is clearly visible in those instances where the adhesive filling is completely or partially lost, revealing the carved groove (Figures 9b, 9c, and 11). The third decorative motif on the Gotha sculpture—as well as on other mosaic-encrusted artworks of the same “family”—is one that we call the black-and-white motif, for it alternates small black-and-white square tesserae in a line, usually two white ones made of shell and three black ones, perhaps made of lignite. Interestingly, this black-and-white motif, which the senior author tentatively interpreted elsewhere as qualifying the marked areas as “shiny” (Domenici Reference Domenici2020), is always inserted in red lines of Spondylus tesserae (Figures 3–5, 9b, and 11). On the figure's lips, this pattern is repeated twice on each side; in one instance, on the right side of the head, only a single black tessera is still in place. In these cases, the black-and-white motif probably alludes to the wet, and thus shiny, surface of the lips.

Another exceptional component of the sculpted figure, highly significant for its identification, is the prismatic protuberance between the eyes, projecting upward and forward reaching the middle of the bill (Figures 3, 4, and 11). In terms of ornamentation, it is mainly organized in two sections. On the front section, the symmetry between both sides is striking and the decoration is again based on a series of bands, juxtaposing from front to back: a band of tiny blue-green tesserae, a band of small and almost-square dark green tesserae, a band of elongated mother-of-pearl tesserae, a band of elongated Spondylus tesserae—within which is inserted, on each side, the black-and-white motif—and another band of blue-green tesserae. In this section, few tesserae of the red and white bands of Spondylus and mother-of-pearl have survived, while the turquoise and malachite mosaics stand out for their masterful execution, probably the finest in the piece (Figure 11). At half of their height, these vertical bands display some of the decorative elements characteristic of the piece: the black-and-white motif, the stellar eye and a series of three contiguous disks—on the left side, the series juxtaposes mother-of-pearl, Spondylus, and mother-of-pearl, a composition which is inverted on the right side, where we find Spondylus, mother-of-pearl, and Spondylus. Finally, the narrow, trapezoidal front of the protuberance was encrusted with a mosaic composed of small, almost-square, blue-green tesserae, which is now severely damaged with only the lower area intact, where a round tesserae, also lost, was originally placed.

The back sides of the protuberance, closer to the eyes, bear particularly interesting motifs. At the top, a mother-of-pearl volute is surrounded by a blue-green mosaic, on top of which a disk-shaped tessera was originally encrusted. On the left side of the head, the mother-of-pearl volute is bigger and made of two tesserae, while on the right it was created from a single tessera (Figures 4 and 11). As for the lower zones of both sides of the protuberance, where it joins the bill, they exhibit a semi-circular motif elaborated with two concentric lines of tesserae, one of white shell and the other of Spondylus. The interior of this half circle is filled with blue-green tesserae and a disk-shaped mosaic of the same material is placed on top of it. The “background” of all these motifs is a mosaic of light-green tesserae (Figure 11).

The protuberance over the bill and several elements of its decoration are critical for the figure's identity. In fact, a sharp bill associated with a rectangular protuberance projecting toward the front is typical of multiple painted and sculpted images of the Postclassic Nahua and Mixtec Wind God—principally known as Quetzalcoatl Ehecatl and 9-Wind (Figure 12)—who was one of the principal demiurges and culture heroes in these societies. The prominent buccal mask, as it is often called, of this divine character has been described since early colonial times, and the sixteenth-century Codex Tudela, in particular, stresses that the Wind God gave rise to the wind when he blew through this appendage (Batalla Rosado Reference Batalla Rosado2002:f. 42). More recently, scholars have studied how the Mesoamerican Wind God's bill matches the physical features of different birds, especially ducks, whose habitats and conduct also connect them to the wind (Espinosa Reference Espinosa Pineda and Torres2001; O'Mack Reference O'Mack1991; Taube Reference Taube2004:169–173). While it is likely that the Wind God's images were inspired by different animals, it is worth noting that Whitley (Reference Whitley1973), followed by Pohl and Lyons (Reference Pohl and Lyons2010:85), identified the deity's protuberance on top of the bill as a trait of the Muscovy duck (Cairina moschata), characterized by a prominent red caruncle over its bill. Interestingly, the Muscovy duck emits a hiss-like vocalization whose blend of breath and sound might have been equated with the Wind God's gusts by Mesoamerican peoples, who also consumed this animal either wild or domesticated (Gade Reference Gade, Kiple and Ornelas2000; Whitley Reference Whitley1973).

The Gotha sculpture is of little help in further clarifying the identification of the Wind God with a specific bird, but it is striking that the protuberance on the figure's bill is crowned by a volute that is clearly a reference to the wind (Dupey García Reference Dupey García2020; Espinosa Pineda Reference Espinosa Pineda1997; Taube Reference Taube, Fields and Zamudio-Taylor2001), as well as to the Wind God's ability to blow the wind through his bill. The mother-of-pearl volute, indeed, suggests that from the “block” formed by the bill and its protuberance the wind is blown and flows upward. Significantly, a similar volute can be observed on top of the buccal mask of well-known Wind God stone sculptures, such as the Coronation Stone of Moctezuma II (McEwan and López Luján Reference McEwan and Luján2009:69) or the full-length statue from Calixtlahuaca (Estado de México, Mexico) now on display in the Museo de Antropología e Historia de Toluca (Figure 12a). As for the half circles composed of lines of white shell and Spondylus tesserae and filled with a blue-green mosaic on the lower part of the protuberance (Figure 11), they also confirm the identification of a Wind God's image whose creation was aimed at evoking blowing air in multiple ways (Dupey García Reference Dupey García2020). In fact, the representations of this deity in many pre-Columbian Mixtec and Borgia Group manuscripts are figures in which the bill's protuberance is separated from the bill and converted into the god's nose, whose essential function of breathing is accentuated by the addition of nostrils (Figures 12b and 12c; Anders and Jansen Reference Anders and Jansen1994:Plates 1, 6, 23, 32; Anders et al. Reference Anders, Jansen and Jiménez1992a:Plates 10, 24, 31, 34, 36, 38, 47, 48, Reference Anders, Jansen and Jiménez1992b:Plates 38, 65, Reference Anders, Jansen and García1993b:Plates 9, 40, 51, 72, 73, Reference Anders, Jansen and García1994a:Plates 24, 35). In these images, the nostrils are depicted as quarter circles and positioned in the same location as the half circles in the Gotha artifact; consequently, we interpret the latter as possible representations of the god's nostrils from which he exhaled air.

The identification of the Gotha sculpture as an image of the Wind God is further strengthened by the analysis of other decorative elements displayed in the piece. In particular, the blue-green mosaic disks on top of both “nostrils” may be explained on the basis of several representations of the Nahua and Mixtec Wind God in stone or gold and painted in manuscripts. Indeed, in the Calixtlahuaca sculpture (Figure 12a), the pair of “Atlantean” sculptures found on the Calle de las Escalerillas in Mexico City, or the squatting sculpture in the Museo Nacional de Antropología also in Mexico City, the deity exhibits two tubular appendages on the sides of his bill's protuberance, which might refer to the air blown by the Wind God from his “nares.” This proposal is supported by depictions of Quetzalcoatl Ehecatl in the codices Magliabechiano and Tudela, and also in a Mixtec gold earplug, where a tubular form topped by a precious bead emerges from the god's nostrils (Figure 12e; Anders Reference Anders1970:ff. 7v, 11v, 61r, 78r; Batalla Rosado Reference Batalla Rosado2002:ff. 42r, 49r, 88r; McEwan and López Luján Reference McEwan and Luján2009:102). These “tubes” could be reminiscent of the chalchihuitl nose-plug that horizontally crossed the nose of Quetzalcoatl Ehecatl in pre-Hispanic codices, such as the Codex Borgia (Anders et al. Reference Anders, Jansen and García1993b:Plates 9, 23, 56, 60), although we are not certain that they are depictions of this specific jewel. Rather, we regard both the horizontal nose-plug and the tubes along the protuberance/nose of the Wind God as variations of a widespread Mesoamerican visual metaphor: the materialization of precious breath emitted from the nostrils (Houston and Taube Reference Houston and Taube2000; Houston et al. Reference Houston, Stuart and Taube2006:141–152). And we posit that the depiction of such tubes on the two-dimensional mosaic of the Gotha sculpture could have taken the form of disks.

Other diagnostic elements are the rows of white teeth, which are seen in an image of Quetzalcoatl Ehecatl in the Codex Borbonicus (Figure 12d; Anders et al. Reference Anders, Jansen and García1991:Plate 22), while in this and other codices the god frequently displays a bill full of sharp teeth or a single canine protruding in the bill commissure (Figures 12b, 12c, and 12e; e.g., Anders et al. Reference Anders, Jansen and García1991:Plate 5, Reference Anders, Jansen and García1993b:Plate 19). Finally, if we are correct in interpreting the section of uneven Spondylus tesserae over the rows of three teeth in the Gotha Bird Head as the typical scalloped, sagging edge of the upper lip of Quetzalcoatl Ehecatl—as depicted, for example, in the Codex Borgia (compare Figures 3 and 12b; Anders et al. Reference Anders, Jansen and García1993b:Plates 16, 19, 72)—this might be another one of the god's distinctive features.

The eye areas in the Gotha sculpture have two, almond-shaped eye sockets carved out of the wood support (Figures 3, 4, and 7a), which are now devoid of any decoration except for a tiny, blue-green tessera on the upper edge of the figure's right eye socket (Figure 5). This unique trace, already noted by Schwarz (Reference Schwarz2013:36), suggests that the edges of the eyes were once decorated with small blue-green tesserae. Otherwise, we have no clue regarding the original elements in the eye sockets. It is probable, however, that large pieces of brilliant materials, such as pyrite, were placed there and outlined by a thin, blue-green mosaic decoration. Such an arrangement would be similar to that of the mosaic-encrusted human skull today in the British Museum, where two pyrite orbs are delineated by pieces of white Strombus shell. Colonial accounts, such as Díaz del Castillo's (Reference Díaz del Castillo and Maudsley1956:219–220; Bassett Reference Bassett2015:146) chronicle, confirm that sculptures of the Nahua gods could be “covered with precious stones, and gold and pearls, and with seed pearls stuck on with a paste” and had “eyes that shone, made of their mirrors,” which were made of pyrite or obsidian. The hypothesis of large elements used in the eyes is also reinforced by the complete loss of the decoration of the two eyes—with the exception of the minuscule, blue-green tessera. Andree (Reference Andree1889:129) suggested that the original ornaments might have been purposely detached because of the value they had for the piece's former owners. Other hypotheses could also be raised, such as the insertion of eyes during the manufacture of the Nahua gods’ embodiments to give them identity and agency (Bassett Reference Bassett2015), and conversely their possible removal when their human creators wanted to inactivate them.

Below each eye, we again discern a decoration composed of a series of parallel bands, reminiscent of the band or bands sometimes seen under the eye of Quetzalcoatl Ehecatl—or crossing it—in the codices Magliabechiano and Tudela (Figure 12e; Anders Reference Anders1970:ff. 7v, 11v, 61r, 78r; Batalla Rosado Reference Batalla Rosado2002:ff. 42r, 49r, 88r). Close to the protuberance, two of them are still visible: a blue-green band, well-preserved on both sides, and a dark green one. In contrast, the two bands in the middle are completely lost today, but their existence is confirmed by the marks left on the adhesive (Figure 7e). Near the outer corner of the figure's left eye another line of blue-green tesserae is still visible (Figures 4 and 7e). Assuming that the pattern of parallel vertical bands seen on the protuberance is repeated under the eye, the two missing bands of mosaic might have been made of elongated mother-of-pearl and Spondylus tesserae, whose preservation is precarious throughout the piece.

Above the eye sockets, the Bird Head exhibits thick double eyebrows. The inner part is formed by a volute made of a dark green malachite mosaic, while the outer section is an even larger volute of blue-green tesserae that coils around the inner volute at the outer corner of each eye (Figures 3–5). This naturalistic element is also crucial for the identification of the figure, since a prominent blue eyebrow is one of the distinctive features of the Wind God in several Pre-Columbian and colonial manuscripts (Figure 12b). It is even found in some synoptic forms of the deity's image representing the day sign ehecatl (wind) in several codices, which include the bill and the protuberance/nose, the god's volute-shaped ear pendants, a single white fang protruding in the bill commissure, and a prominent blue eyebrow (Anders et al. Reference Anders, Jansen and García1991, Reference Anders, Jansen and García1993b, Reference Anders, Jansen and García1993c, Reference Anders, Jansen and Van Der Loo1994b).

The back of the head is decorated on each side with an uneven mosaic of light-green tesserae (Figures 3, 4, 7b, and 9a), while on the “jaws” the craftsmanship of the mosaic involved other materials, perhaps another series of bands, as suggested by the marks left on the adhesive. On the left side, malachite is clearly seen flanking a vertical band without tesserae but still visible on the adhesive; on the right side, the situation is more confusing because a few malachite and blue-green tesserae remain, as well as the marks of the former bands of mosaic, again visible on the adhesive, but the distribution of colors is unclear (compare Figures 3 and 4). These peripheral areas also display some of the motifs typical of the Gotha sculpture and the “family” of mosaic-encrusted objects to which it belongs. A stellar eye was included on each “jaw” (Figures 3, 4, and 9b), while each “cheek” shows a series of disks. Specifically, two disks, now lost, were originally placed on the right side of the head, while, on the left, a design inspired by a series of three disks stands out for its irregularity because it is made of various tesserae of different shapes and sizes (Figure 7b).

Behind each eye, the figure exhibits a large, fan-shaped area that was filled—possibly after being outlined by a previous incision—with a dark brown organic material, most likely the adhesive employed to attach the tesserae (Figures 3, 4, and 9a). The application of this substance creates a contrast between the sheen of the stone and shell mosaic and the opaqueness, though with golden reflections, of the adhesive layer; a contrast that probably heightened the appreciation of this multimedia object. Perhaps this unexpected decorative use of the adhesive also had a symbolic meaning and was intended to suggest that this fan-shaped element filled with an organic material stood for another fan made with organic components. Specifically, we wonder if these designs on the back portions of the Gotha Bird Head represent the Wind God's fan-shaped neck ornament, often fashioned with dark and red feathers (Figures 12b and 12c). In fact, the neck ornament and the decoration made with the adhesive share their shape and location. Furthermore, on the right side of the Bird Head, the fan-shaped element ends with small trapezoidal areas of dark green malachite mosaic, each with an added red tip made of a single Spondylus tessera (Figure 9a). These mosaic additions to the decoration made with the organic material create a trapezoidal form with flaring tips that recall the composition of dark feathers and sparkles of red characteristic of the Wind God's neck adornment (compare Figures 9a and 12b). Additionally, in the Gotha sculpture, the colors of the fan-shaped element match those of Quetzalcoatl Ehecatl's neck ornament in the codices Laud and Ixtlilxochitl, in which it displays the same hues: black, red, and green or blue-green (Figure 12c; Anders and Jansen Reference Anders and Jansen1994:Plate 23; Durand-Forest Reference Durand-Forest1976:f. 103r). Curiously, the pattern of dark green mosaic and red tesserae is conspicuous for its absence on the left side of the Bird Head, making the sculpture notably asymmetric in these areas (compare Figures 3 and 4).

Last but not least, the top of the head and the forehead of the Gotha artifact display a central anthropomorphic figure rendered in a colorful mosaic on a background made of especially large Spondylus tesserae (Figure 10). In the first place, the placement of this figure is meaningful, since in most of the known anthropomorphic and zoomorphic Late Postclassic mosaics—for example, the Yacatecuhtli mask today in the Museo delle Civiltà in Rome, or the masks from the Tehuacán region (Puebla, Mexico) in the National Museum of the American Indian in Washington, DC—the forehead shows some kind of chromatic “enhancement,” usually darker than the rest of the “face” (Domenici Reference Domenici2020, Reference Domenici2021b). Given the relevance of the forehead as one of the key bodily parts for the expression of the self in Mesoamerican systems of thought (cf. Classic Mayan baah, “forehead,” “face,” “body,” “portrait”; Houston et al. Reference Houston, Stuart and Taube2006:12, 58–72), the forehead of the Gotha Bird Head could have served as an appropriate functional locus (Salazar Reference Salazar Lama2014; Salazar and Valencia Rivera Reference Salazar Lama and Rivera2017), where an image that expressed some essential quality of the Wind God was displayed.

The red forehead area is bordered by bright blue-green tesserae on both sides. This visual contrast might have further emphasized the particular significance of this section's iconography, which required an exquisite mosaic of tiny blue-green tesserae, instead of the irregular composition of light-green stones normally used for peripheral areas or to create backgrounds. Enclosed in these blue-green areas we notice a series of three disks on each side, two of which were made of Spondylus on the left, while all are lost on the right (Figure 10a). On the outer edges of these blue-green areas, that is, at the “temples,” we see a new series of bands, exceptionally well-preserved on the right side: a white band of mother-of-pearl and a red band of Spondylus, where the black-and-white motif was inserted (Figures 5 and 10a).

We will describe and explain the anthropomorphic figure in the center as seen from the front because this is how it needs to be read in order to unveil its profound meanings (Figure 10). It is a descending figure typical of Postclassic Mesoamerican iconography: the bent legs are depicted at the top of the bird's head, while the diminutive character's head was designed on the Wind God's forehead, suggesting that the figure is falling headlong. Its limbs were rendered with a delicate malachite mosaic that originally ended with claws denoted by the combination of a Spondylus tessera with a hook-shaped white shell tessera. One of the legs is bent toward the back and the other on the front suggesting movement. The left arm is extended on the side of the figure and originally ended in a claw, now lost, which probably included the same white hook attached to a red base that we see on the right side. Most of the right arm, in contrast, is covered by a pair of large, nestled volutes made of blue-green turquoise and malachite, which stand for the torso of the figure (Figure 10b). The torso area also displays a Spondylus pectoral and a dorsal ornament with two narrow pendants created with tesserae of different colors and shapes. The two nestled volutes, which cannot be associated with any known body adornment, emphasize the twisted appearance of the descending figure.

The most exciting part of the falling anthropomorphic figure is undoubtedly the head, which is tipped backward to look up. It is made of a malachite mosaic and clearly shows an ear with an adornment composed of a trapezoidal pendant, both made of mother-of-pearl. The top of the small figure's head also displays two mother-of-pearl tesserae that were carved with curled notches to suggest curly hair. Two series of three minuscule Spondylus and shell tesserae were finely combined to create the gums and teeth of the small figure, which does not have lips and thus displays a fleshless jaw. A stellar eye is seen above the gums, while a mother-of-pearl volute is placed under the teeth, suggesting that the figure is exhaling, blowing, or speaking. Finally, the front part of the head—where the nose should be—exhibits a relatively long and curiously hooked appendage, also made of malachite (Figure 10). Due to this unusual “nose,” the small figure on the forehead was initially identified as a bird with a curved bill, the “stylized figure of a parrot” according to Andree's (Reference Andree1890:148) work, where one of the lithographs shows an appendage more pointed and bill-like than it really is (compare Figures 1 and 10). Schwarz (Reference Schwarz2013:37), however, has noted that the figure is not actually a real bird because he has limbs. At the same time, Schwarz has highlighted its aggressive features, such as the claws that might connect this character to several categories of harmful beings in Nahua culture. In particular, Schwarz succinctly compared the small figure on the Wind God's head with the Tzitzimime deities—specifically, the one depicted in the Codex Magliabechiano (Anders Reference Anders1970:f. 76r)—and the Cihuateteo, women who had died in childbirth and were transformed into menacing supernatural beings.

Clearly the small figure on the Gotha sculpture's forehead has a fierce appearance, based not only on its claws but also on its fleshless mandible displaying the teeth. The descending position with the head tipped backward is also interesting, since, in Mesoamerican mythology and iconography, it symbolizes the descent of different types of beings from upper regions of the cosmos, often to attack human communities or as part of cosmogonic narratives. But among the categories of descending beings, the hooked frontal appendage makes the Gotha figure virtually unique. In our view, this protuberance seems too thin and blunt to represent a bird's bill, while its shape is quite unusual for a nose in Mesoamerican iconography. Interestingly, though, beings with similar hooked noses—sometimes coiled, when the hook is rolled onto itself—are seen in the Borgia Group codices, particularly in the enigmatic central section of the Codex Borgia. In this series of plates, as well as in the Codex Cospi, the figures with hooked—or coiled—noses exhibit the same fleshless lower mandible, tangled and curly hair, and claws like the Gotha figure (Figures 13a, 13c, and 14b; Anders et al. Reference Anders, Jansen and García1993b:Plates 29, 31, Reference Anders, Jansen and Van Der Loo1994b:Plates 1–8). Also, the hooked-nose figures in these codices can wear a white ear adornment made of unspun cotton that has the same trapezoidal shape as the ear pendant of the forehead figure (Figure 13c). Finally, in some images in the Cospi, the hair of these beings has the same light color, while, in one instance, this manuscript shows the hooked-nose creature in a descending position with bent legs on the top and the head tipped backward on the bottom (Figure 13a; Anders et al. Reference Anders, Jansen and Van Der Loo1994b:Plate 2). Therefore, we believe that the aggressive-looking figure on the Gotha sculpture might be an expression of a hooked-nose supernatural being that is also seen in these codices. Identifying this being or category of beings is hence critical to understanding why he/she crowns the mosaic-encrusted head of the Wind God and to formulate hypothetical overall interpretations for the piece.

Figure 13. Hooked-nose entities and descending figures. (a) Codex Cospi, Plate 2, detail, Biblioteca Universitaria di Bologna, Ms.4093 ©Alma Mater Studiorum Università di Bologna—Biblioteca Universitaria di Bologna. (b) North mural of the side court, Palace IV, Mitla, Oaxaca, detail, from Seler (Reference Seler, Thompson, Richardson and Bowditch1991 [1888]:vol. 2, p. 186). (c) Codex Borgia, Plate 32, detail. Drawing by Nicolas Latsanopoulos.

Figure 14. Hooked-nose entities and wind-related figures in an emergence scene. (a) Codex Borgia, Plate 29. (b) Codex Borgia, Plate 29, detail of the frame goddess's face. (c) Codex Borgia, Plate 29, detail of the emergence of a figure with the buccal mask of the Wind God. Drawings by Nicolas Latsanopoulos.

INTERPRETATION

Original Appearance and Function of the Object

The flat wooden bar with a central knob on the top of the Bird Head lacks any trace of decoration except for a few tesserae on its front edge, suggesting this was originally the only visible part of it (Figures 5 and 7d). This leads us to believe the bar might have supported some kind of decoration, possibly a headdress, while the two holes on the sides of the head might have been used to tie this additional decorative item to ensure its stability (Figures 5 and 9a). But what kind of decorative attachment might be expected on the Gotha sculpture? Based on the iconography of the Nahua and Mixtec Wind Gods, their typical troncoconical headdresses come to mind (Figures 12b–12d), although it is difficult to imagine how a three-dimensional item could have stood on top of the narrow wooden bar. A perhaps more plausible idea is that the sculpture displayed a feathered head ornament. It could have had the shape and colors of Quetzalcoatl Ehecatl's fan-shaped ornament fashioned with dark and red feathers and spotted with stellar eyes, which sometimes was not fixed on the neck but on the upper back part of the god's head or, in other instances, was double and appeared on both the back and top of the head (Figure 12f; Anders et al. Reference Anders, Jansen and García1991:Plates 3, 26, 27, Reference Anders, Jansen and García1993c:Plate 87). If so, the juxtaposition of precious stones, shells, and feathers would have further enhanced the multimedia character of the sculpture through three categories of materials whose different qualities of brilliance were highly prized in Postclassic central Mexican aesthetics (Caplan Reference Caplan2014, Reference Caplan2019; Dupey García Reference Dupey García, García and de Ágredos Pascual2018a; Russo Reference Russo, Wolf and Connors2011).

Our hypothesis is supported by references to mosaic-encrusted items decorated with feathers in diverse colonial inventories and chronicles. The Annals of Cuauhtitlan, in particular, relate the myth of the decadence of Tollan, in which Coyotlinahual, the patron deity of feather workers, fashioned a polychrome mosaic mask for king Quetzalcoatl; it had serpent teeth and was associated with a head fan (apanecayotl) and a beard made of feathers (Bierhorst Reference Bierhorst1992:30–33; Bassett Reference Bassett2015:30). Similarly, the attire of Quetzalcoatl sent to Hernán Cortés by Moctezuma II included, according to the Florentine Codex, a turquoise-mosaic mask “inserted on a high and big crown full of rich feathers, long and very beautiful, so that on placing the crown on the head, the mask was placed over the face” (engerida en una corona alta y grande, llena de plumas ricas, largas y muy hermosa, de manera que poniéndose la corona sobre la cabeza se ponía la mascara en la cara; Sahagún Reference Sahagún, Austin and Quitana2000:vol. 3, p. 1167; English translation from Saville [Reference Saville1922:13–14]). A comparable association between a mosaic mask and a feathered item appears in the Tlaloc costume given on the same occasion, which included “a mask with its feather-work” (una máscara con su plumaje; Sahagún Reference Sahagún, Austin and Quitana2000:vol. 3, p. 1168; English translation from Saville [Reference Saville1922:15]). It is also worth citing the list of objects that Cortés shipped to Spain together with his famous second letter, in which “two colored feather adornments that were for two gemstones helmets” (dos plumajes de colores que son para dos capacetes de pedrería) are mentioned (Cortés Reference Cortés1985:25). This last description inevitably recalls the mosaic-encrusted horned helmet today in the British Museum, which has a hole on top where feathers could have been inserted (McEwan et al. Reference McEwan, Colin, Cartwright and Stacey2006:53).

The list of gifts received by Cortés brings us to the problem of the Gotha sculpture's function. In our description and interpretation, we have carefully avoided the use of functionally charged terms, in particular “mask,” which has been employed since Andree's (Reference Andree1888:215, Reference Andree1889:128–129, Reference Andree1890:147) first remarks on the piece and often repeated in subsequent scholarly works (Oppel Reference Oppel1896:9; Pogue Reference Pogue1912:449, Reference Pogue1915:95; Schwarz Reference Schwarz2013; Seler Reference Seler and Seler1967 [Reference Seler and Seler1923]:365). Toscano defined the Gotha artifact, as well as various other specimens covered with mosaic, as pectorals (Toscano Reference Toscano1984 [1944]:178–179). Other scholars, more cautiously, avoided this kind of terminology, instead using neutral phrasings such as “bird's head” (Izeki Reference Izeki2008:139; Saville Reference Saville1922:81). Bube (Reference Bube1846:68) proposed it could have been part of an “idol,” an idea echoed by Pasztory (Reference Pasztory1983:277) for mosaic-encrusted objects in general. This author suggested this category of art pieces was worn by gods’ embodiments, while Schwarz recalled that Nahua priests often wore the attributes of gods during their festivals and proposed the Gotha “mask” might have been part of one of these “costumes,” even stating that its dimensions coincide with those of a human face (Schwarz Reference Schwarz2013:31–32). The object's narrowness, however, reveals it could not have been worn on the face or directly on the head of a human being (Figures 6 and 8). Nevertheless, it is plausible that it could have been part of a bird-shaped headdress, like those seen in codex imagery. In Mixtec codices, these head decorations sometimes include almost complete representations of the Wind God's head, with his characteristic bill and protuberance, but without the lower mandible (Anders et al. Reference Anders, Jansen and Jiménez1992a:Plate 51, Reference Anders, Jansen and Jiménez1992b:Plates 3, 19, 20, 27).

It is also worth exploring an alternative hypothesis. Analyzing other mosaic-encrusted “masks” representing beings known as ñuhu, the senior author of this article had put forward the idea—based on codex imagery and archaeologically associated materials—that these pieces might have been attached to sacred bundles, to express the identity of the deities embodied within these ritual items (Domenici Reference Domenici, Martinez, Sears and Seig2021a). Given the key role played by sacred bundles in Mesoamerican religious life (Bassett Reference Bassett2014, Reference Bassett2015; Correa Valdivia Reference Correa Valdivia2013; Guernsey and Reilly Reference Guernsey and Reilly2006; Hermann Reference Hermann Lejarazu2008; Olivier Reference Olivier1995, Reference Olivier, Guernsey and Reilly2006, Reference Olivier, Carrasco and Sessions2007, Reference Olivier, Olivier and Neurath2017; Pohl Reference Pohl1994:23–41; Stenzel Reference Stenzel1970; Winzenz Reference Winzenz2008), they are often depicted in pre-Hispanic and colonial codices, where they sometimes display attached “masks,” such as those of a ñuhu or the Mixtec Rain God Dzahui in the Codex Selden (Caso Reference Caso1964:Plates 3, 5, 8, 14). Neither the jaguar-skin bundle of Quetzalcoatl described by Alva Ixtlilxóchitl (Reference Alva Ixtlilxóchitl and O'Gorman1985:vol. 1, p. 387), nor the various sacred bundles of the Wind God depicted in the Mixtec Codex Nuttall display any “mask.” Instead, they are identified by associated calendric names, location in temples, or an anthropomorphic flint knife alluding to the deity's birth; a flint knife could also have been wrapped within the bundle (Hermann Reference Hermann Lejarazu2008:80–81; Jansen Reference Jansen1982:vol. 2, pp. 326–327; Olivier Reference Olivier, Carrasco and Sessions2007:287; Pohl Reference Pohl1994:26, 32–33). Nevertheless, the head of the beaked Wind God surmounts two sacred bundles depicted in the Selden Roll, a colonial manuscript from the Coixtlahuaca Valley (Figure 15; Burland Reference Burland1955).

Figure 15. Depictions of sacred bundles topped by beaked Wind God, Selden Roll (details). Drawing by Nicolas Latsanopoulos.

Even if these images of the Wind God's head perhaps do not represent masks—they could well be iconographic devices used in pictorial communication to express the “identity” of an otherwise unrecognizable bundle—the cases of the ñuhu and the Mixtec Rain God in which only the facial area and not the whole head is represented in Codex Selden, as well as some Maya and Teotihuacan representations of bundles (Taube Reference Taube1986:70–71) strongly suggest that actual masks found in archaeological contexts were at times attached to bundles. For example, the bowl containing a ñuhu mask in a niche of Zaachila Tomb 1 might have previously contained a bundle with a mask (Gallegos Reference Gallegos Ruiz1963). According to Mendieta (Reference Mendieta1993:79–80), Nahua god bundles were created after their sacrificial death during the creation of the Fifth Sun, thus blurring the conceptual distinction between sacred and funerary bundles, which in many cases—especially royal ones—were provided with masks. Indeed, in the Relación de Michoacán not only the face of the dead cazonci was covered with a mask, but a feathered turquoise mask was attached to the entire bundle containing his cremated ashes (Roskamp Reference Roskamp2010:49). Another relevant case is that of captives sacrificed by the Mexica during the Tlacaxipehualiztli festival: according to Sahagún's (Reference Sahagún, Dibble and Anderson1953–1982:bk. 2, p. 57) Indigenous collaborators, each captor hung his victim's femur to a pole “[a]nd he wrapped the thighbone in paper, and provided it with a mask (Auh in queztepolli, amatica qujqujqujmiloaia, qujxaiacatiaia).”

In view of the various lines of evidence supporting the proposal that masks were fixed to sacred bundles, it is highly possible that the Gotha sculpture served a similar purpose, which is in fact as plausible as its use as part of the attire of a priest or a human embodiment of the Wind God. A similar hypothesis has been put forward for the Copenhagen mosaic-encrusted wood sculpture representing Xolotl, whose rear tube-like, hollow socket suggests it could have been attached to a baton inserted in a bundle, as illustrated by the bundle with a head of Xolotl on plate 64 of the Codex Vaticanus B (Domenici and Nielsen Reference Domenici and Nielsen2018:126). If tied to a bundle by means of its two lateral holes, the Gotha sculpture would have hung in an almost vertical position, perfectly displaying the fierce descent of the small figure on its forehead.