Birds in uncertain climates are more likely to stray from their mates. National Evolutionary Synthesis Center, February 16, 2012. Married people may pledge to stay faithful through good times and bad, but birds sing a different tune — when weather is severe or uncertain, a new study finds that birds are more likely to stray from their mates. The results could mean more marital strife for birds coping with climate change, the researchers say. Picked up by Discovery News, Huffington Post, Scientific American, Globe and Mail, the New York Times, and MSNBC.