complete sets of John James Audubon’s Birds of America. While Audubon was creating Birds of America, he was also working on a companion publication, namely, his Ornithological Biography.
For over one hundred years, once a year, families and students, birders and scientists, armed with binoculars, bird guides and checklists take part in the Christmas Bird Count. 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.