Christmas Bird Count
The nation's longest-running citizen science bird project fuels Audubon science throughout the year.
The nation's longest-running citizen science bird project fuels Audubon science throughout the year.
Christmas Bird Count 2015, Central Park, NYC. Photo: Camilla Cerea/Audubon
Everything you need to know to run your Christmas Bird Count circle
A collection of reports and summaries
You can add to a century of citizen science data by signing up for a count near you
Hundreds of studies by scientists around the world have put CBC data to use
Peruse the printed records of past Christmas Bird Count or find a full bibliography for American Birds and Bird Lore.