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.
PBS
Nh Pbs: Nature Works: Razorbill
This resource offers a clear and concise look at the Razorbill. Students and teachers will find information on this aquatic bird ranging from life cycle and diet to characteristics and habitat.
Canadian Museum of Nature
Canadian Museum of Nature: Great Auk
A profile of the extinct Great Auk is provided here by the Canadian Museum of Nature.