Count volunteers follow specific routes through a designated circle 15 miles (24 km) in diameter and count all the birds they see or hear throughout the day. It's not just a species count, all the birds are counted throughout the day, which gives an indication of the total number of birds in the circle that day. Many people send the checklists recorded in the CBC to eBird, but these checklists are *not* automatically marked or included in the CBC database, since there is no funded integration between The Christmas Bird Count and eBird. It is vitally important that all the checklists of a CBC are sent to the compiler of the count.
Next, the compiler will review and count all the results in your circle and send the data to the Audubon CBC database. Participating is easy, fun and can be done alone or with other people, and can be done anywhere where birds are found. The National Audubon Society now collaborates with Bird Studies Canada, the Texas Gulf Coast Bird Observatory (responsible for CBC in Mexico) and the National Bird Observer Network (RNOA) and the Alexander von Humboldt Institute in Colombia. The Christmas Bird Count (CBC) is a census of birds from the Western Hemisphere, conducted annually in early winter in the Northern Hemisphere by volunteer birdwatchers and administered by the National Audubon Society.
The National Audubon Society protects birds and the places they need, today and tomorrow, across the Americas through science, promotion, education and conservation on the ground.
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