All About Birds. A great website from the Lab of Ornithology at Cornell University.
Check out their new desktop (photoID) and smartphone (Merlin) apps for bird identification.
Massachusetts Audubon Society.
The Eastern Massachusetts Hawk Watch, promoting '..study, conservation, and preservation of hawks...'.
The American Bird Conservancy, a political advocacy group intended to mobilize birdwatchers as a constituency.
The American Birdwatching Association. The name says it all.
Recent bird sightings from Tom Wetmore (and more Plum-Island-related links).
Janet Egan's Plover Warden Diaries. A continuing celebration of birds and other creatures on the Island, along with interesting and useful links.
Updated September 7, 2015 by Pete
Since September 2015.