When a worker helping to set up Rockefeller Center's 2020 Christmas tree discovered a tiny bird in the giant branches, he called his wife. "The owl's not flying away," he said. "We need to get some help." His wife called Ravensbeard Wildlife Center to ask if they took owls for rehabilitation. They did, and when a staff member met the husband and peeked into the box, it wasn't a baby bird. It was a tiny male saw-whet owl, which grows to be only 8.3 inches tall.