[1] Puerto Rico Department of Environmental and Natural Resources. 2005. Puerto Rico's Comprehensive Wildlife Conservation Strategy 2005.
[2] USFWS. 1990. Puerto Rican parrot (Amazona vittata). Endangered and Threatened Species of the Southeastern United States (The Red Book), USFWS Southeast Region, Atlanta, GA.
[3] U.S. Fish and WIldlife Service. 1999. Revised Recovery Plan for the Puerto Rican Parrot, Technical/Agency Draft. Southeast Region, Atlanta, GA.
[4] U.S. Fish and Wildlife Service. 2003. Three is a charm. Press release, May 14, 2002.
[5] U.S. Fish and Wildlife Service. 2004. Flight freedom. Press release, May 3, 2004.