| eNature Birds http://www.enature.com/fieldguides/intermediate.asp?curGroupID=1 Species accounts of North American birds, including images, descriptions, and sounds. | |
| eBird http://www.ebird.org/ Project developed by the Cornell Lab of Ornithology and the National Audubon Society, provides a simple way to keep track of the birds you see anywhere in North America. | |
| WhatBird http://www.whatbird.com/ A step-by-step parametric search engine for identifying birds in North America. Illustrations, calls, and links. | |
| WBBA Species Audio Library http://www.uwgb.edu/birds/wbba/speciesaudios.htm Collection of 200 bird song audio recordings in high-quality MP3 format. All recordings were made in Wisconsin. | |
| The Virtual Birder http://www.virtualbirder.com/ Virtual birding tours of North America's leading hot spots, articles, rare bird alerts, e-mail discussion group archives, and photo galleries. | |
| The Nature Conservancy - Migratory Bird Program http://my.nature.org/birds/about/ Migratory Bird Program | |
| The Bird Guide http://thebirdguide.com/ Site guides, identification articles, and links for the Pacific Northwest, including Oregon, Washington, California, Idaho, and British Columbia. | |
| Sibley Guides http://www.sibleyguides.com/ Information about the Sibley Guide to Birds, including updates, subspecies, and a gallery of David Sibley's paintings. | |
| Peterson Birding Resources http://www.houghtonmifflinbooks.com/peterson/resources/ Links and list of bird spectacles. | |
| Partners in Flight http://www.partnersinflight.org/ An association supported by federal, state, and regional governments dedicated to the preservation of bird species that summer in North America and winter in South America. Volunteer information and species data. | |
| On Silent Wings Bird Photography http://www.wildbirdphotos.com/ Photographs of birds from the ABA North American region, with birding and photograph links for beginners to experts. | |
| Old Bird, Inc. http://www.oldbird.org/ Information about the Flight Calls of Migratory Birds (Eastern North American Landbirds) CD-ROM and the Dickcissel night flight call monitoring project. | |
| Obsolete English Names of North American Birds http://www.pwrc.usgs.gov/research/pubs/banks/obsall.htm Thorough list of old names of North American and Hawaiian birds and their modern equivalents. | |
| North American Bird Sounds http://www.naturesongs.com/birds.html Doug Von Gausig's site with bird songs, other sounds, and some explanatory text. | |
| North American Bird Photography Gallery http://www.birdphotography.com/ Photographs of many species by Peter LaTourrette. | |
| North American Bird Notes http://www.birdinfo.com/ Notes, distribution maps, and photos of current rarities. Includes gull section and bird quizzes. | |
| North America Rare Bird Alert http://www.narba.org/ Subscription reporting service on rare birds in the United States and Canada. | |
| John James Audubon's Birds of America http://www.audubon.org/bird/BoA/BOA_index.html Audubon's images and original text descriptions from an 1840 (First Octavo Edition) of Audubon's complete seven volume text. | |
| Hummingbirds http://www.hummingbirds.net/ Photograph album, migration maps, attracting and feeding tips, species accounts, and articles. | |
| HawkCount http://hawkcount.org/ Daily reports of migrant hawks seen at many North American hawk watch sites. | |
