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British bird feeders may have changed the way birds’ beaks are shaped

British bird feeders may have changed the way birds’ beaks are shaped

A common backyard bird evolved an extra-long beak in a stunningly short period of time, researchers have found, and the reason might be the very human (and specifically very British) phenomenon of bird feeders. Up until now, as far as any bird expert knew, great tits that lived in the UK and great tits that…