Bird Studies Canada: 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

Birds of Quebec: Denis LePage's site with annotated checklist, best birding sites, interactive checklist, and extensive links

Dutch Birding Association: News, Dutch Birding journal, photo gallery, birds sounds, listers' rankings, and a bulletin board

Hummingbirds: North American hummingbirds, with photo album, migration maps, attracting and feeding tips, species accounts, and articles

Patuxent - Bird Population Studies: 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