Bird watchers are blanketing the country with binoculars and checklists. It's that time of year again: the National Audubon Society's Christmas bird count. Also, experts discuss the ivory-billed woodpecker, long thought extinct, and rediscovered earlier this year.
Geoff LeBaron, Christmas bird count director for the National Audubon Society
Kenneth Rosenberg, conservation science director, Cornell Laboratory of Ornithology, Cornell University