The Missouri Department of Conservation (MDC) encourages experienced birders to become citizen scientists by helping with the National Audubon Society’s annual Christmas Bird Count (CBC) – including about 20 counts in Missouri. 

Christmas Bird Counts are held annually between Dec. 14 and Jan. 5 to gather data on winter bird populations and to track the long-term status of species and large-scale trends. More than 2,500 CBCs are coordinated by local Audubon chapters and experienced birders across the United States, Canada, Latin America, the Caribbean, and the Pacific Islands. Each CBC has a coordinator that assigns portions of a 15-mile diameter count circle to participants to count all birds seen and heard.

Missouri hosts about 20 CBCs, including the following list. If interested in participating, contact the CBC organizer listed.

For a full list of CBCs, visit

The CBC began in the United States in 1900 and is the longest-running citizen science effort in the country. For more information on Christmas Bird Counts, visit the National Audubon Society online at