PBS
Pbs: The Life of Birds
Online companion to the PBS program "The Life of Birds." In-depth look at certain behaviors of birds, the evolution of birds, birds as parents, and bird songs.
Earth Life
Earth Life Web: Extinction in Birds
This site, which is provided for by Earth-Life Web, gives a list of extinct birds and provides a brief description and dates of extinction.
A-Z Animals
A Z Animals: Animal Facts: Dodo (Raphus Cucullatus)
Provides an overview of the Dodo, including its history, habitat, appearance, diet, and much more. Images of this species and statistics can also be found here.