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This is Scientific American's 60-second science. I'm Christopher in Taliatta.

Travel the U.S., and you'll hear English spoken in a multitude of ways.

And it turns out the same can go for songbirds, specifically the swamp sparrow.

Scientists have now used those swamp sparrow regional dialects, together with computer simulations,

to extrapolate how the Sparrow songs have changed and evolved over time.

And they found that certain song motifs could date back hundreds, even thousands of years.

That's where, frankly, it blew me away, I have to say.

Steve Nowicki, a biologist at Duke University.

If Leif Erickson had taken time once he discovered North America to get as far in as northwestern

Pennsylvania, where I was just last week, he would have heard some, not many, but some of

the same song types that I was just listening to.

The study is in the journal, Nature Communications.

Passing learned information from generation to generation, that sounds a whole lot like culture.

It is culture.

These birds are showing a persistence of cultural tradition that is heretofore unknown and, you know,

sort of matches that of the best cultural persistence

we might see in human culture.

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