The 115th Annual Audubon Christmas Bird Count will take place Dec 14, 2014 to January 5, 2015. The longest running Citizen Science survey in the world, Christmas Bird Count provides critical data on population trends. Tens of thousands of participants know that it is also a lot of fun. Data from the over 2,300 circles are entered after the count and become available to query under the Data & Research link.
Read more how to participate in your local area across the United States - http://birds.audubon.org/christmas-bird-count