Roger Tory Peterson. The Birds. New York:Time-Life Books, 1968.
BirdLife International. www.birdlife.org
Birds Of Britain. Over 400 pages of changing monthly features and a permanent guide to Britain's bird reserves and clubs. www.birdsofbritain.co.uk
Cornell Laboratory of Ornithology. Comprehensive information on North American birds including a bird guide, identification tips, and conservation programs. www.birds.cornell.edu
FeatherSite - The Poultry Page. An on-line zoological garden of domestic poultry, including photos, video and information about various breeds of fowl, such as chickens, ducks, geese, guinea fowl, peafowl, pigeons, and turkeys. Various wildfowl are also included. www.feathersite.com
GBWF.org. The internet resource for enthusiasts of Galliformes (Game Birds) and Anseriformes (WaterFowl). Promotes conservation through aviculture, awareness of endangered species, husbandry education and interaction with fellow enthusiasts worldwide. www.gbwf.org
Patuxent Wildlife Research Center. Develops and manages national inventory and monitoring programs and is responsible for the North American Bird Banding Program and leadership of other national bird monitoring programs. www.pwrc.usgs.gov
Peregrine Fund World Center for Birds of Prey. Working to conserve biological diversity and enhance environmental health of birds by focusing on management and conservation of species and their habitat, and through education and scientific investigation. www.peregrinefund.org
Royal Society for the Protection of Birds. A UK charity working to secure a healthy environment for birds and other wildlife, helping to create a better world for us all. www.rspb.org.uk
American Racing Pigeon Union. www.pigeon.org
Ducks Unlimited. Conserves, restores and manages wetlands and associated habitats for North America's waterfowl. www.ducks.org