Waterfowl Commonly Seen in Practice

African goose

African Goose

The exact origin of the African goose is unclear, however this breed is related to the Chinese goose and may have come from China.

This massive bird has a heavy body, large head, thick neck, stout bill, and a smooth, crescent-shaped, cream-colored dewlap that hangs from the lower jaw and upper neck. The mature bird has a large knob attached to its forehead, which requires several years to develop. Body feathers are ash brown edged with a lighter shade. African geese are also quite long. Their relatively erect posture allow birds to achieve a height of 0.9 m (3 ft). Show birds can reach a weight of 11.8 kg (26 lb), however the mature gander averages 10 kg (22 lb), while a mature goose (female) averages 8.2 kg (18 lb).

African geese can withstand considerable cold weather but need shelter to protect their knobs from frostbite. Knobs that have developed frostbite often develop orange patches that usually disappear by fall.

Image by Zyada.

References

American Livestock Breeds Conservancy website. Available at: http://albc-usa.org/. Accessed on December 7, 2012.
Animal Diversity Web. Available at http://animaldiversity.ummz.umich.edu/accounts/Aix_sponsa/. Accessed December 08, 2012.

British Waterfowl Association. Available at: http://www.waterfowl.org.uk/index.html. Accessed on December 8, 2012.

Cosley zoo. White Pekin duck. Available at
http://www.cosleyzoo.org/species/white_pekin_duck.htm. Accessed on December 7, 2012.

Pedynowski D, Payne M. Captive-rearing and release criteria for mallards (Anas playtrhynchos). NWRA. Pp. 91-101.

Rogers Luebbert JA. Canada goose (Branta canadensis) rehabilitation: A natural history guide for veterinarians. Proc Assoc Avian Vet 1996. Pp. 245-251.

Sibley DA. The Sibley Guide to Birds. New York, NY; Alfred A. Knopf; 2000.

Speer BL. Pet waterfowl medicine and surgery. Annu Conf Proc MASAAV 2007. Pp. 90-92.

To cite this page: Pollock C. Waterfowl commonly seen in practice. December 19, 2012. LafeberVet Web site. Available at https://lafeber.com/vet/waterfowl-commonly-seen-in-practice/