Buffalo Ornithological Society
Birding Western New York and the Niagara Peninsula of Ontario

Magnolia Warbler - © Sue Barth

 Christmas Bird Count

Christmas Bird Counts (CBCs) are annual winter bird censuses conducted by volunteers between mid-December and early January.

Historically, this tradition involved competitions to see who could kill the most birds, but in 1900, at the urging of the Audubon Society, observers began to COUNT birds instead. This practice has spread, and such opportunities for enjoying a day of birding and contributing to ornithological research abound in our area.

Counts cover a circular territory having a 15 mile (24 kilometer) diameter, with small parties covering assigned areas within the circle over a 24 hour time period. Until recent years, observers were asked to submit a nominal fee to cover the costs of data compilation and publication. That's no longer the case and your participation is FREE!

Below is a listing of the CBCs held within the BOS coverage area and is updated annually with the specific dates, compiler contact information, and details for those who may wish to participate. Contact a compiler for a CBC and get outside for a day of holiday birding!

View a map of the active Audubon CBC circles here: CBC Circles »

2026/2027 CBC Schedule:

A checkmark () in the left column indicates the date and details have been confirmed by the compiler.