Wild Songbirds Can Pick Up New Tunes
Researchers taught two dozen wild sparrows new songs, by playing them the recordings of sparrows that live thousands of miles away. Jason G. Goldman reports.
Only a few kinds of animals are known to learn their vocalizations from listening to others. Us, of course. Elephants. Bats. Cetaceans—whales and dolphins. Pinnipeds—walruses, seals and sea lions. And parrots, hummingbirds and songbirds. That's it.
"When your cat meows or your dog barks, it does that because it has genetically inherited that sound. But birds are like us, young animals have to hear adults in order to develop normal sounds."
There have been hundreds of conventional experiments done in laboratories with captive birds that support the idea that young birds learn to sing by listening to older birds. These studies also taught us that birds, like humans, have what's called a "sensitive period" early in life, a time when they are most disposed to learn how to vocalize from their elders.
But nobody ever did one of those experiments with wild birds. Observational studies, yes. But no true experiments. Until now, thanks to some wild savannah sparrows.
Read more: https://www.scientificamerican.com/podcast/episode/wild-songbirds-can-pick-up-new-tunes/
Credit: Cephas
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My mother was a bird watcher and both of my grandmothers were quite interested in the birds, too - so I picked up a lot from them. They really are fascinating, and since we can identify them by their songs, I thought this was interesting news. 
