Other
Facilisimo: Mascotas: Aves
A wealth of information, entirely in Spanish, about a variety of birds. Colorful photographs accompany descriptions of different species. Care and training advice is also offered.
Canadian Museum of Nature
Canadian Museum of Nature: Carolina Parakeet
The Carolina parakeet was once found in the southern United States but is now extinct. The reasons are explained here and you can see a drawing of this lost bird.