BirdNote Daily

The harsh caws of American Crows are one of the most familiar bird calls in North America. Fish Crows sometimes join flocks of American Crows as they forage for food. The two crow species look similar, but have a distinct call that sounds a bit like an American Crow with a stuffy nose. The Fish Crow is found in much of the eastern U.S. and is spreading to new areas north and west to breed.

This episode is brought to you by Wild Delight Bird Food, which aims to support wild bird populations with clean, nutritious ingredients in every blend. Available at Chewy.com.

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In higher animals, the brain is like a Lamborghini — amazing engineering, but expensive to run. In a human, the brain uses about 10 times more energy than other organs. A bird's system is exquisitely attuned to this expense. Several species, including Black-capped Chickadees, have adapted in a clever way. You can usually hear these chickadees calling throughout fall and winter. But they aren’t singing much, because they don’t need to. In their brains, the centers that control how they learn and give voice to songs shrink. But as the birds resume singing during spring, the control centers in the brain rejuvenate.

More info and transcript at BirdNote.org.

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May is the prime month across much of North America to celebrate the return of migratory birds from the tropics. Of all those coming back, it is the warblers that many birders eagerly await. And of the more than 50 species that brighten our spring, many gleam like precious stones. From the sky-blue of the Cerulean Warbler to the golden cloak of this Prothonotary Warbler, these tiny birds dazzle us. Purchasing shade-grown coffee can help these and other warblers!

This episode is brought to you by Wild Delight Bird Food, which aims to support wild bird populations with clean, nutritious ingredients in every blend. Available at Chewy.com.

More info and transcript at BirdNote.org.

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BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible.

Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Does staying cooped up inside with your kids sometimes drive you up the wall? Take comfort in the bird that does it year after year — the hornbill. Each breeding season, a female hornbill plasters herself into her nest cavity, leaving only a thin slot for ventilation and food. She stays there for months to raise her young, while her mate brings her food.

More info and transcript at BirdNote.org.

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The peace of the vast Guyanan jungle is abruptly broken with the dawn chorus of male Capuchinbirds, one of the most bizarre birds in South America. The singing male bows forward, then suddenly stretches to his full length, raising a monk-like cowl of feathers around his naked blue-gray head. The unmistakable noise attracts female Capuchinbirds, which jostle each other ruthlessly in the quest to get close to the studliest of the displaying males. The alpha male with the best singing technique will be the only one to mate.

More info and transcript at BirdNote.org.

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Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.