4-day global count asks people to spend at least 15 minutes this weekend logging sightings
(Newser) -
Valentine's Day and Presidents' Day aren't the only things on the calendar this weekend—bird-watchers have their own global event, and anyone with 15 minutes to spare can join in. The Great Backyard Bird Count , run by the Cornell Lab of Ornithology, the National Audubon Society, and Birds...