History and overview of Audubon's Christmas Bird Count.
How to work on your CBC Data Entry Bird Checklist Video
CBC - Why it's important to collect effort information while surveying on a Christmas Bird Count
Since 1936, the Audubon Camp in Maine has offered environmental education programs for adults, teens, families and conservation leaders on Hog Island in Muscongus Bay, Maine.
Audubon's Christmas Bird Count - Tallying the birds of the Americas for over a century