The nation's longest-running community science bird project fuels Audubon's work throughout the year. The Christmas Bird Count occurs December 14 to January 5 every season.

Nov 18, 2025 · Now 125 years strong, the Christmas Bird Count is getting even better! Over the next three years, Audubon will be transforming this flagship community science program to enhance the …

The Christmas Bird Count celebrated its 125th year with a record-breaking count. Over 83,000 participants came together across the hemisphere to count birds as part of one of the longest …

To view and download population trends derived from CBC data, visit our Audubon Christmas Bird Count Trend Viewer. If you plan to use CBC data assets in research, peer-reviewed publications, or …

One of the longest running citizen science events in the world, The National Audubon Society Christmas Bird Count began in 1900. It provides reliable data that help demonstrate the importance of national …

A chronology of Audubon's publications in which the Christmas Bird Count summaries have appeared can be found here. Online Archives of Annual Summaries of the Christmas Bird Count by decade

Use this map to find a Christmas Bird Count circle near you.

Dec 4, 2025 · Whether you've just started bird-watching or you are an advanced "birder," consider heading outdoors over the next few weeks to help gather important data about birds during the 126th …

Dec 5, 2025 · Audubon’s 126th Christmas Bird Count will be held from Dec 14, 2025 to January 5, 2026! The longest-running bird census provides important data for scientists and conservationists …

13 hours ago · The annual Christmas Bird Count (CBC) enlists thousands of volunteers across the western hemisphere to count every bird they see and hear. For more than a century, the CBC has …