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A male Eastern Bluebird stands on a wooden nestbox attached to a fence post. The bluebird’s song – and his alert presence - assert his claim to this territory. In the mid-20th Century, the numbers of bluebirds in the Northeast declined to the lowest level ever, due largely to nesting competition from non-native starlings and House Sparrows. Then, conservation groups stepped up, setting out “bluebird trails” of nestboxes. Thanks to groups like the North American Bluebird Society, we can still count on bluebirds to welcome the arrival of spring. 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. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. 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.

Bird beaks, or bills, come in many shapes and sizes. And birds use them for just about everything: to collect food, preen, fight, court, and more. In order for a bird to fly, its beak must weigh as little as possible. Beaks are covered with a sheath of a tough material called keratin, which grows continuously because a beak wears down with use. This episode brought to you by the Bobolink Foundation. More info and transcript at BirdNote.org. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. 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.

With today’s mobile apps and sound libraries, it’s never been easier to listen to birds on demand. But that wasn’t always the case – not until the 1920s when ornithologist Arthur Allen teamed up with an ambitious film production crew to record the dawn performance of a Song Sparrow. That first recording, featured in this episode, is now one of millions in the Cornell Lab of Ornithology’s Macaulay Library. More info and transcript at BirdNote.org. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. 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.

The Reddish Egret, a particularly glamorous heron, is best known for its startling antics in capturing fish. When fishing, the egret sprints across the lagoon, weaving left and right, simultaneously flicking its broad wings in and out, while stabbing into the water with its bill. Fish startled at the egret’s crazed movements become targets of that pink dagger. At times, the bird will raise its wings forward over its head, creating a shadow on the water. It then freezes in this position for minutes. Fish swim in, attracted by a patch of shade and . . . well, you know the rest. Support comes from Wild Delight Bird Food, offering a variety of blends designed to mimic the natural resources wild birds crave, available at Chewy.com. More info and transcript at BirdNote.org. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. 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.

Hummingbirds are built for hovering flight, with flexible wrists that rotate their wings in a rapid figure-eight motion that generates almost constant lift. Eurasian Skylarks, on the other hand, hover by fluttering their wings 10-12 times per second, singing all the while. Some raptors such as American Kestrels use a different strategy: by flying into the wind, they can float in place while they scan for prey. More info and transcript at BirdNote.org. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. 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.

The Golden-cheeked Warbler is an endangered species and the only bird that nests exclusively in central Texas. Males arrive in March to stake out a territory in the juniper-oak woodlands – the older the trees, the better! By the end of July, the warblers are on their way back to mountain forests of southern Mexico and Central America. Sadly, deforestation has destroyed and fragmented much of their habitat across the Americas. Now, this special songbird’s future depends on people stepping up to protect our forests — from Nicaragua to Texas. This episode is dedicated to naturalist Dave Sutherland from Boulder, Colorado, who has taught so many so much! More info and transcript at BirdNote.org. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. 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.

Outdoor cats are one of the biggest threats to birds, killing over a billion a year in North America. And indoor-outdoor cats live much shorter lives than indoor-only cats. So keeping a cat indoors helps protect birds. And there are plenty of ways to make the “great indoors” more exciting for your cat. In this episode, BirdNote senior producer Mark Bramhill shares his experience with his cat, Pigeon, who enjoys a ‘catio’ — cat-patio — and walks on a leash. This episode was produced as part of BirdNote’s “From Love to Action” campaign, an effort to inspire people to take action to help birds. To learn more and to tell us how you’re helping birds, visit this link. More info and transcript at BirdNote.org. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. 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.

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. More info and transcript at BirdNote.org. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. 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.

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. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. 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.

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. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. 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.