Endangered birds losing their songs make it tough to find mates, train their young, experts say
Unconventional male singers were less successful in wooing mates, the scientists found.
from http://www.firstpost.com/tech/science/endangered-birds-losing-their-songs-make-it-tough-to-find-mates-train-their-young-experts-say-9428001.html
from http://www.firstpost.com/tech/science/endangered-birds-losing-their-songs-make-it-tough-to-find-mates-train-their-young-experts-say-9428001.html
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