"If females can hear all song types equally well, they will go for the sexy ones, but if they cannot hear the sexy ones well anymore, then they might just go for the songs they can still hear. It could very well be that noise pollution is interfering with reproductive decisions by females." —Wouter Halfwerk, a behavioral ecologist at Leiden University in the Netherlands, on his study that indicates male birds are increasing the pitch of their singing to distinguish their songs from man-made sounds. Which is maybe what Bon Iver did when he went out to that cabin after he broke up with his saxophonist girlfriend? [...]
It's science and bearded folk singers!