ACRES (2016) An investigation into pet shop conditions for birds in Singapore 2016. Singapore: ACRES.
Anonymous (2005) Singapore steps up bird flu checks as more cases surface worldwide. Downloaded from http://www.straitstimes.com/ on 12/5/2017
Bashari, H. (2015) Perdagangan burung paruh bengkok di kawasan Wallacea. Bogor, Indonesia: Burung Indonesia
Cardador, L., Tella, J. L., Anadon, J. D., Abellan, P. and Carrete, M. (2019) The European trade ban on wild birds reduced invasion risks. Conserv. Lett. 2019; e12631
Chin, J. (2012) Wildlife trade in Singapore: The internet as a conduit for trade in protected and prohibited wildlife species. B.Sc. thesis. National University of Singapore.
Chng, C. L., Eaton, J. A., Krishnasamy, K., Shepherd, C. R., and Nijman, V. (2015) IN THE MARKET FOR EXTINCTION: An inventory of Jakarta’s bird markets. Selangor, Malaysia: TRAFFIC.
Chng, C. L., Lee, J. G. H., and Shepherd, C. R. (2016). The conservation status, legal protection and assessment of the trade in Straw-headed Bulbuls Pycnonotus zeylanicus in Singapore. Traffic Bull. 28(2): 49–52.
Eaton, J. A., Leupen, B. and Krishnasamy, K. (2017) Songsters of Singapore- An overview of the bird species in Singapore pet shops. Selangot, Malaysia: TRAFFIC.
Harris, S. J., Massimino, D., Newson, S. E., Eaton, M. A., Balmer, D. E., Noble, D. G., Musgrove, A. J., Gillings, S., Procter, D. and Pearce-Higgins, J. W. (2015) The Breeding Bird Survey 2014. Thetford, United Kingdom: British Trust for Ornithology.
Hulme, P. E. (2009) Trade, transport and trouble: managing invasive species pathways in an era of globalization. J. Appl. Ecol. 46: 10–18.
Iqbal, M. (2015) Looking at online bird trading in Indonesia; a case study from South Sumatra. Birding ASIA 24: 132–135.
Karesh, W. B., Cook, R. A., Bennett, E. L. and Newcomb, J. (2005) Wildlife trade and global disease emergence. Emerging Infectious Diseases. 11: 1000–1002.
Kilpatrick, A. M., Chmura, A. A., Gibbons, D. W., Fleischer, R. C., Marra, P. P. and Daszak, P. (2006) Predicting the global spread of H5N1 avian influenza. Proc. Natl. Acad. Sci. 103: 19368–19373.
Lee, J. (2006) Wildlife trade in Singapore: A review on the pet bird trade. B.Sc. thesis. National University of Singapore, Singapore.
Lin, J. (2005) Tackling Southeast Asia’s illegal wildlife trade. Singapore Year Book of International Law and Contributors. 9: 191–208.
Low, B. W. (2014) The global trade in native Australian parrots through Singapore between 2005 and 2011: a summary of trends and dynamics. Austral Ornithol. 104: 277–282.
Nash, S. V. (1994) Sold for a song, the trade in Southeast Asian non-CITES birds. Selangor, Malaysia: TRAFFIC
Newing, H. (2011) Conducting research in conservation: a social science perspective. London and New York: Routledge.
Olah, G., Butchart, S. H. M., Symes, A., Guzman, I. M., Cunningham, R., Brightsmith, D. J., and Heinsohn, R. (2016) Ecological and socio-economic factors affecting extinction risk in parrots. Biodivers. Conserv. 25: 205–223.
Poole, C. M. and Shepherd, C. R. (2016) Shades of grey: the legal trade in CITES-listed birds in Singapore, notably the globally threatened African grey parrot Psittacus erithacus. Oryx 51: 411–417.
R Core Team (2017) R: A language and environment for statistical computing. Vienna, Austria: R Foundation for Statistical Computing.
Reino, L., Figueira, R., Beja, P., Araujo, M. B., Capinha, C. and Strubbe, D. (2017) Networks of global bird invasion altered by regional trade ban. Sci. Advances 3: 1–8.
Roe, D. (2008) Trading nature: A report, with case studies, on the contribution of wildlife trade management to sustainable livelihoods and the Millennium Development Goals. Cambridge, UK: TRAFFIC and Gland, Switzerland: WWF.
Rosen, G. E. and Smith, K. F. (2010) Summarizing the evidence on the international trade in illegal wildlife. Eco Health 7: 24–32.
Shepherd, C. R., Stengel, C. J. and Nijman, V. (2012) The export and re-export of CITES-listed birds from the Solomon Islands. Selangor, Malaysia: TRAFFIC.
Sodhi, N. S., Koh, L. P., Brook, B. W. and Ng, P. K. L. (2004) Southeast Asian biodiversity an impending disaster. Trends Ecol. Evol. 19: 654–660.
Tabaranza, B and Lepiten-Tabao, M. (2001) A Report on the Investigation into the trade in Cockatoos and other Parrots from North Moluccas, Indonesia to the Philippines. Quezon City, Phillipines: Haribon Foundation.
Tella, J. L. and Hiraldo, F. (2014) Illegal and legal parrot trade shows a long-term, cross-cultural preference for the most attractive species increasing their risk of extinction. PLoS ONE 9: (9).
Tingley, M. W., Harris, J. B. C., Hua, F., Wilcove, D. S. and Yong, D. L. (2017) The pet trade’s role in defaunation. Science 356: 916–916.
Toledo, L. F., Asmüssen, M. V. and Rodríguez, J. P. (2012) Tracking illegal trade in wildlife. Nature 483: 36.
TRAFFIC (2008) What’s driving the wildlife trade? A review of expert opinion on economic and social drivers of the wildlife trade and trade control efforts in Cambodia, Indonesia, Lao PDR and Vietnam. Washington, USA: The World Bank.
Travis, D. A., Watson, R. P. and Tauer, A. (2011) The spread of pathogens through trade in wildlife. OIE Revue Scientifique et Technique 30: 219–239.
Vanrompay, D., Ducatelle, R. and Haesebrouck, F. (1995) Chlamydia-Psittaci infections--a review with emphasis on avian chlamydiosis. Veterin. Microbiol. 45: 93–119.
Wyler, L. S. and Sheikh, P. A. (2013) International illegal trade in wildlife: Threats and U.S. policy. Washington DC: U.S.A. Congressional Research Service.