Audubon Christmas Bird Count
The nation's longest-running community science bird project fuels Audubon's work throughout the year.
The nation's longest-running community science bird project fuels Audubon's work throughout the year.
Christmas Bird Count 2015, Central Park, NYC. Photo: Camilla Cerea/Audubon
You can add to a century of community science by signing up for a count near you.
Everything you need to know to run your Christmas Bird Count circle
A collection of reports and summaries
Track how your favorite birds have fared over decades with our CBC trends viewer.
Hundreds of studies by scientists around the world have put CBC data to use
How the count started, and how the data is used today.
Peruse the printed records of past Christmas Bird Count or find a full bibliography for American Birds and Bird Lore.
Our email newsletter shares the latest programs and initiatives.