References
References
Forshaw J (ed). Encyclopedia of Birds, 2nd ed. San Diego, CA: Academic Press; 1991.
Lexicon of Parrots website. Available at http://www.arndt-verlag.com/. Accessed on April 12, 2013.
Low R. Average bird weights of common parrot species. Avian Web.com Web site. Available at http://www.avianweb.com/AverageBirdWeights.htm. Accessed on April 17, 2013.
World Parrot Trust website. Available at http://www.parrots.org/. Accessed on May 1, 2013.