The National Audubon Society coordinates the Christmas Bird Count each year during this season. The Christmas Bird Count is a census of birds in the Western Hemisphere, by volunteer birdwatchers. From the Audubon website, "The 115th Christmas Bird Count begins on Sunday, December 14th, 2014, and runs through Monday, January 5th, 2015. The count period runs from December 14 to January 5 every year. Let the counting begin!" Browse the great photos in the Christmas Bird Count Gallery on the Audubon Society site.
More from the Audubon site:
"From December 14 through January 5 tens of thousands of volunteers throughout the Americas take part in an adventure that has become a family tradition among generations. Families and students, birders and scientists, armed with binoculars, bird guides and checklists go out on an annual mission - often before dawn. For over one hundred years, the desire to both make a difference and to experience the beauty of nature has driven dedicated people to leave the comfort of a warm house during the Holiday season.
Each of the citizen scientists who annually braves snow, wind, or rain, to take part in the Christmas Bird Count makes an enormous contribution to conservation. Audubon and other organizations use data collected in this longest-running wildlife census to assess the health of bird populations - and to help guide conservation action.
From feeder-watchers and field observers to count compilers and regional editors, everyone who takes part in the Christmas Bird Count does it for love of birds and the excitement of friendly competition -- and with the knowledge that their efforts are making a difference for science and bird conservation."
To participate, visit http://birds.audubon.org/christmas-bird-count