| 1. A Field Guide to the Birds on the Web |
| Links to pictures, sounds, and video of the birds of the world, systematically indexed. |
| http://fieldguide.tripod.com/ |
| 2. About: Birds - Class Aves |
| Educational site outlining the characteristics of birds, their biology and classification. |
| http://animals.about.com/od/birds/p/aves.htm |
| 3. American Ornithologists' Union Check-list of North American Birds, Seventh Edition |
| Official source on the taxonomy of birds found in North and Middle America, including adjacent islands. The full list of bird species (with scientific and English names) is online in HTML, .pdf, and Excel formats. |
| http://www.aou.org/checklist/ |
| 4. Avibase |
| An extensive database information system about all birds of the world, containing nearly 1 million records about 10,000 species and 22,000 subspecies of birds, including distribution information, taxonomy, and synonyms in several languages. |
| http://www.bsc-eoc.org/avibase/avibase.jsp |
| 5. Bird Families of the World |
| Don Roberson's detailed guides to about half of the world's 202 bird families. |
| http://montereybay.com/creagrus/list.html |
| 6. Bird Families of the World |
| Short descriptions and sounds of the world's bird families by Chris Butler. |
| http://www.eeb.cornell.edu/winkler/botw/Main.... |
| 7. Bird Hybrids Database |
| Worldwide database compiled from the ornithological literature of birds with two different species as parents. Includes complete references for each species combination. In English, French, and Spanish. |
| http://www.bird-hybrids.com/ |
| 8. Bird On! |
| Internet wild bird pages including information on a bird book, bird news, bird care, a bird album and short articles of a number of bird species. |
| http://birdcare.com/birdon/ |
| 9. Birdhybrids |
| Mailing list for discussion of bird hybrids. |
| http://fr.groups.yahoo.com/group/birdhybrids/ |
| 10. Birds Wiki |
| Online field guide that invites readers to add to and edit. |
| http://birds.wikia.com/ |
| 11. Birds of North America |
| A reference series on North American birds, with information and sample profiles. |
| http://bna.birds.cornell.edu/BNA/ |
| 12. Birds of North American, Audubon's Watercolors |
| Fifty-one images of North American birds from watercolors done by John James Audubon. List can be browsed by common or scientific name. |
| http://www.nature.net/birds/ |
| 13. Birds of Pampas Plain |
| Provides information and photographs of over 600 bird species that can be seen in Argentina. |
| http://www.avespampa.com.ar |
| 14. Birds of the World |
| List of current valid scientific avian names subdivided by order and family, based on the Sibley and Monroe and AOU lists. Includes scientific names and publication details. |
| http://www.zoonomen.net/avtax/frame.html |
| 15. Birds of the World |
| Lists of all species with scientific and English names, subdivided by Family. Choice of list based on the Clements or the Sibley and Monroe classification schemes. |
| http://birdingonthe.net/clements/Clements.htm... |
