| BirdSource: Joint project of National Audubon and the Cornell Lab of Ornithology with the complete Christmas Bird Count database, Project FeederWatch, BirdCast, HawkWatch results, Great Backyard Bird Count, and feature articles. |
| Patuxent - Bird Population Studies: Comprehensive data on North American birds, including the Breeding Bird Survey, Christmas Bird Count trends, migratory bird projects, the Bird Identification InfoCenter, checklists, ID tips, and quiz. |
| A2Z4 Birders Online Guide: North American Birds: Guide to many different groups of birds with photos, text, sounds, sonograms, maps, and video. |
| American Bird Center: Links related to birds and birding in the United States and Canada. |
| American Birding Association: North America's largest membership organization for active birders, with news, details on publications and programs, and birding resources. |
| Bird Lists - North America: Checklists and links for all US states, Canadian provinces, and outlying areas. |
| Bird Records Committee Forum: Archives of the e-mail group for discussion of issues pertaining to groups that evaluate rare bird reports. |
| Bird Song and Wildlife Unlimited: Information about the book by Ernie Jardine with tips on learning songs, quiz (no audio), links, and photo gallery. |
| Bird Watcher's Digest: Magazine for birdwatching, birding, backyard bird feeding, bird gardening, bird identification, bird travel, and birding products. |
| BirdBand: Archives of the forum for bird banders. |
| BirdCntr: Archives of the e-mail group for central US/Canada rare bird alerts. |
| BirdEast: Archives of the e-mail group for eastern US/Canada rare bird alerts. |
| Birder.com: Links and books useful to birders. |
| Birders Journal: The Canadian magazine for North American birders, with information and tables of contents. |
| Birdfilms.com: Videos and DVDs on the lives and natural habitats of North American birds by Michael Male and Judy Fieth. |
| BirdHawk: Archives of the Hawk Migration Association of North America e-mail group. |
| Birding America: Pictures and stories of birds, habitats, and birding at more than 185 sites in the United States and Canada. |
| BirdIQ: Site from ConocoPhillips with basic information on birds, bird watching, and feeding for students, teachers, and anyone interested in learning more. |
| Birds of North America: Comprehensive reference series on North American birds, with information and sample profiles. |
| Birds of the Continental United States and Canada: Checklist of 914 species recorded in North America north of Mexico. |
| Birdwatching: Frequently asked questions, birding tips, articles, and store. |
| BirdWest: Archives of the e-mail group for western US/Canada rare bird alerts. |
| Birdzilla: Sightings, newsletter, articles, species profiles including the complete text of Bent's Life Histories, bird lists, photos, backyard birding, and shopping. |
| Bird_RBA: Archives of the e-mail group for reports of continentally rare birds. |
| Boreal Songbird Initiative: Dedicated to educating birdwatchers and naturalists about the importance of the boreal forest of North America to migratory birds. |
| Cornell Laboratory of Ornithology: A membership institution interpreting and conserving the earth's biological diversity through research, education, and citizen science focused on birds. |
| eBird: 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. |
| eNature Birds: Species accounts of North American birds, including images, descriptions, and sounds. |
| Familiar Birds: Full text of some of the species accounts of more common birds by Arthur Cleveland Bent from his classic Life Histories of North American Birds (1919-1968). |
| George West's Birding Homepage: Photo gallery, trip reports, Arizona hummingbird banding program, and updates to "A Birder's Guide to Alaska". |
| Hawk Migration Association of North America: Monitors raptor migration throughout North America. |
| HawkCount: Daily reports of migrant hawks seen at many North American hawk watch sites. |
| Hummingbirds: Photograph album, migration maps, attracting and feeding tips, species accounts, and articles. |
| Index to the Archives of Birding Email Lists: Links to searchable archives of U.S. and Canada birding email groups. |
| Internet Field Guide to Birds: Keys to identify North American species online; from The BioDiversity Institute. Includes photo gallery. |
| John James Audubon's Birds of America: Audubon's images and original text descriptions from an 1840 (First Octavo Edition) of Audubon's complete seven volume text. |
| North America Rare Bird Alert: Subscription reporting service on rare birds in the United States and Canada. |
| North American Bird Notes: Notes, distribution maps, and photos of current rarities. Includes gull section and bird quizzes. |
| North American Bird Photography Gallery: Photographs of many species by Peter LaTourrette. |
| North American Bird Sounds: Doug Von Gausig's site with bird songs, other sounds, and some explanatory text. |
| North American Birds: Quarterly journal with feature articles and comprehensive sightings summaries. Available online are information about the journal, tables of contents, some photos, and submission information. |
| Obsolete English Names of North American Birds: Thorough list of old names of North American and Hawaiian birds and their modern equivalents. |
| Old Bird, Inc.: Information about the Flight Calls of Migratory Birds (Eastern North American Landbirds) CD-ROM and the Dickcissel night flight call monitoring project. |
| On Silent Wings Bird Photography: Photographs of birds from the ABA North American region, with birding and photograph links for beginners to experts. |
| Partners in Flight: 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 info and species data. |
| Peterson Birding Resources: Links and list of bird spectacles. |
| Sibley Guides: Information about the Sibley Guide to Birds, including updates, subspecies, and a gallery of David Sibley's paintings. |
| Suite101: Birds: Articles and links on different topics related to birds and birding. |
| TeenBirdChat: E-mail group for young birders. |
| The Bird Guide: Site guides, identification articles, and links for the Pacific Northwest, including Oregon, Washington, California, Idaho, and British Columbia. |
| The Nature Conservancy - Migratory Bird Program: Programs to protect critical habitats for birds throughout the Western Hemisphere. Species abstracts, fact sheets, and links. |
| The Virtual Birder: Virtual birding tours of North America's leading hot spots, articles, rare bird alerts, e-mail discussion group archives, and photo galleries. |
| WBBA Species Audio Library: Collection of 200 bird song audio recordings in high-quality MP3 format. All recordings were made in Wisconsin. |
| WhatBird: A step-by-step parametric search engine for identifying birds in North America. Site includes illustrations, calls, and links. |
Classical
