10,000 Birds
All About Birds
American Bird Conservancy
American Birding Association
Aullwood Audubon Center and Farm
Bird Studies Canada (Important Bird Areas of Canada)
Birdzilla
Black Swamp Bird Observatory
Cornell Lab of Ornithology
eBird
Fatbirder
Hotspots Near You
Index of Birdwatching Pages (National Parks Service)
National Audubon Society
National Geographic (Backyard Bird Identifier)
Ohio Bird Conservation Initiative
Ohio Ornithological Society (Birding Links)
Ohio Rare Bird Alert
Online Guide to North American Birds (Audubon)
Patuxent–Tools for Learning About Birds (USGS)
The Internet Bird Collection
The Ultimate Guide to Birdwatching (TripBuzz)
WhatBird.com
WikiProject Birds
Wild Birds.com
Xeno-Canto (Birds of the World Sounds)
