National Science Environment The Biggest Threats To Birds And How You Can Help 8:29am December 26, 2015 News U.S. Around the Nation Science Environment Animals Share URL copied to clipboard! Copyright 2015 NPR. To see more, visit NPR. 300x250 Ad More Weekend Edition Saturday World News Chileans weigh a new constitution by Scott Simon Sports Saturday sports: Serena Williams' dramatic U.S. Open by Tom Goldman 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate