Bird Song and Parallel Evolution: learning from our feathered friends
10,000 Birds
APRIL 21, 2011
So defined, bird songs are the sounds, often but not always loud and musical, that (mostly) male birds make as part of that species’ mating system. This kind of vocalization may have evolved a few different times, though I for one am not going out on a limb to explain what some call “songs&# in hummingbirds or parrots.
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