website introduction：Comprehensive guide to North American birds and bird watching from the Cornell Lab of Ornithology. Includes Bird Guide with identification, life history, sound and video recordings of each bird, with additional 'Birds of North America' material available to subscribers.
website introduction：Utilizing a real-time, online checklist program to maximize the utility and accessibility of the vast numbers of bird observations made each year by recreational and professional bird watchers. Developed by the Cornell Lab of Ornithology and the National Audubon Society. [English/French/Spanish]
website introduction：Promotes conservation of birds and other wildlife through the protection and re-creation of habitats. News, history, programmes, membership, articles, nature reserves, conservation issues, and education.
website introduction：A membership institution interpreting and conserving the earth's biological diversity through research, education, and citizen science focused on birds.
website introduction：Forums for discussion of birds, birding, and bird photography worldwide. Includes photo gallery and trip reports.
website introduction：Find and identify any bird in North America with this parametric search engine.
website introduction：North America's largest membership organization for active birders, with news, details on publications and programs, and birding resources.
website introduction：Provides information and resources about the topic.
website introduction：Surveys and research investigating the populations, movements, and ecology of wild birds in the British Isles.
website introduction：Includes bird species accounts, hunting seasons, and game lands maps.
website introduction：Recent messages from dozens of regional birding e-mail groups.
website introduction：Bird news, online magazine, birdwatchers county directory, photo gallery, species pages and bird merchandise.
website introduction：Promotes the conservation of wetlands, focusing on rare wetland birds.
website introduction：North American hummingbirds, with photo album, migration maps, attracting and feeding tips, species accounts, and articles.
website introduction：The world's largest community website on birdsong, with over 37,000 recordings of 6,000+ species.
website introduction：A beautiful collection of over 40,000 photographs documenting more than 2700 Asian bird species by many different photographers. The Image Database of the Oriental Bird Club.
website introduction：Dedicated to the study and conservation of wild birds in Canada and elsewhere. Details on all BSC programs including the Canadian Migration Monitoring Network, Project FeederWatch, the Important Bird Areas Program, Long Point Bird Observatory, Canadian Lakes Loon Survey, Marsh Monitoring Program, Latin American Training Program, and Baillie Birdathon. French and English.
website introduction：Resource for Binoculars and Spotting Scopes for Birding, Hunting, Nature, Sports, and Outdoor Recreation. See Complete Online Binocular Catalog and Buying Guide.
website introduction：Bluebird bios, nesting requirements, data collection, and nestbox cams.
website introduction：Magazine for birdwatching, bird identification, birding, backyard bird feeding, bird travel, and birding products.
website introduction：World birding news, identification and bird finding articles, photographs, sketches, and trip reports.
website introduction：Audio programming for public radio stations and online content to connect the ways and needs of birds to the lives of listeners, to educate and motivate people to care about the natural world. Each show is scheduled to coincide with the time of year when it’s possible to see or hear the featured bird.
website introduction：Information about Eastern Bluebird conservation and education.
website introduction：Australian bird information including the Atlas of Australian Birds, recent sightings, threatened species, and membership information.
website introduction：An international, non-profit, organization dedicated to the conservation of the Purple Martin.