Birdnote

Invasive European Starlings are one of the most common birds in North American cities. Recent genetic research into European Starlings shows that populations in North America may have become better adapted to thrive in arid environments and colder temperatures compared to the milder climate of their home range in Europe. Evolution is an ongoing process, and sometimes the best examples can be found in birds that live right alongside us in cities.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. 

Woodpeckers, as a group, eat far more ants than most other birds do. Many other vertebrates tend to avoid ants because of their stings or because of the noxious chemicals they contain, like formic acid. But woodpeckers just love them. A Pileated Woodpecker’s diet may include up to 50% ants!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. 

From their cheerful melodies to their vibrant color and skillful acrobatics, there’s a lot to love about Eastern Bluebirds. Look for them along country roads, city parks, and other open woodlands with plenty of grassy patches where they can hunt for snacks.Today’s show is in memory of Bud Oehler, whose trail of nest boxes helped bring Eastern Bluebirds back to Southwest Iowa.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.

With its rubbery-sounding rattles and clownish red eyebrows, the ptarmigan is quite the stand-out northern bird. As winter approaches, the ptarmigan’s feet grow feathers, and its claws grow longer. All that added surface area means the ptarmigan practically has its own set of snowshoes.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. 

The idea of the "swan song" recurs from Aesop to Ovid to Plato to Tennyson. Ovid described it, "There, she poured out her words of grief, tearfully, in faint tones, in harmony with sadness, just as the swan sings once, in dying, its own funeral song." But it's based on a sweet fallacy – that a swan sings only when it nears death. And calling the sounds that a swan makes a "song" might be a bit off, too!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.

Thousands of years ago, giant raptors lived on what is now Cuba. Gigantohierax is an extinct genus of eagles whose fossils have been found in local cave deposits and tar seeps. With an estimated weight of nearly 30 pounds, Gigantohierax suarezi, the larger of the two named species, would’ve been the biggest raptor known from the Americas.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. 

In winter, when snow blankets the northern states, nearly all of the songbirds that graced the days of summer are gone. But there’s one special winter visitor that fills the absence: the Bohemian Waxwing. In autumn, waxwings wander south from the boreal forest into the northern states and along the Rockies. Sometimes, they venture even farther south. In fact, it’s this itinerant life that earned them the name “Bohemian.”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. 

Red-headed Woodpeckers have mastered the art of high-contrast fashion. Both males and females have deep-crimson head feathers. Their clean white body feathers are offset by large patches of ink black feathers on their neck, wings, and tail. This is why you’ll hear some folks refer to them as "flying checkerboards."This episode is dedicated to Bob Goodale whose lifelong love for birds and nature continues to inspire.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.

In this episode of BirdNoir, the Private Eye sees some suspicious activity: a House Sparrow tries to steal a nestbox from Tree Swallows, but then flees the scene in terror. He stakes out the nestbox to see what the Tree Swallows are doing to keep intruders away.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. 

Kenon Walker got one of the most unusual job offers you can get: be the Duckmaster of the Peabody Hotel in Memphis. That means he would lead the hotel’s five ducks on a daily march to the fountain in the lobby, a bizarre and beloved tradition that draws visitors from all over. But when he was first offered the job, Kenon was hesitant to take it because all the previous Duckmasters he knew of were white. Or so he thought.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. 

When smaller birds join forces to ward off larger birds, it's called mobbing. This behavior — like calling your family for help — is used by many bird species. The best time to observe mobbing is spring and early summer, when breeding birds are trying to protect their nests and young. Birds including swallows, blackbirds, and even these American Crows, seen here mobbing a Red-tailed Hawk, know that there is strength and power in numbers. And they've learned to join forces to protect themselves. 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.  

Birds at a suet feeder... What a burst of vitality on a chilly morning! What's the attraction? A cake of suet, suspended from a branch in a small wire feeder. Suet is beef fat, a high-energy food critical for birds' survival in the colder months. Suet is an especially strong magnet for birds (including this Northern Flicker) that eat lots of bugs in the warmer months. You can learn about suet feeders – and what kinds of birds they'll attract – at Birds.Cornell.Edu.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. 

How long can a bird fly without touching the earth? To find out, Swiss scientists attached sensors to Alpine Swifts. The sensors showed long periods when the swifts were gliding and not flapping their wings. Were the birds asleep? Scientists don’t know for sure. It could be that Alpine Swifts sleep during the summer breeding season — and don’t sleep at all during migration. But why do they stay aloft so long? Swifts can’t perch because they have very short legs. So if they can manage it, avoiding touching down makes perfect sense.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.  

Harpy Eagles spend their lives in tall, remote tropical forests in Central and South America, flying from tree to tree in search of food. The eagles are named for the Harpies of Greek mythology, women with the bodies of birds who, on Zeus’s command, snatched people from the earth. Since it takes many months for a nestling to mature, Harpy Eagles raise a youngster just once every two or three years.Listen to this episode in Spanish here.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. 

For small songbirds, surviving a cold winter night can be challenging. Their bodies lose heat faster than those of larger birds. So little birds have found resourceful ways to stay warm — like huddling close together with other birds. But the Verdin, a tiny bird of the Southwest, does something few other birds do to keep warm: it builds extra nests to roost in, in the winter.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. 

Kentucky Warblers nest in forested regions in much of the East, preferring woodlands with a dense understory, often near streams or other wetlands. These birds can use our help. As their forest habitat shrinks, it’s easier for Brown-headed Cowbirds to find and parasitize the warblers’ nests. While migrating, they are easy prey for domestic cats, so keeping cats indoors can save many warblers. And buying products like shade-grown coffee can help keep their tropical winter habitat in good shape.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. 

Christian Cooper wasn’t always interested in birds. His parents were teachers, his dad a science teacher, so nature was always part of his life. When he was a kid, his parents made him take a woodshop class, where he had to build something. So he decided to build a birdfeeder and hang it in his backyard.  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. 

The two American species of dowitchers, Long-billed and Short-billed, are similar in appearance but have distinctive calls. And they’re some of the continent’s most dramatic songsters. On their northern breeding grounds, Short-billed Dowitchers ascend as high as 150 feet in the air then glide slowly earthward, singing. At the end of the glide, they may take off again for another bout of song.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. 

The Greater Honeyguide's demanding call is not aimed at a member of its own species. Instead, the bird guides people in search of honey through the forest, directly to bee hives. The bird flies to a colony of bees living in a hollow tree. The human follower exposes the hive with an ax and takes much of the honeycomb. Then the honeyguide moves in to feast on bee larvae and beeswax.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. 

A typical bird nest will have maybe four to six eggs neatly arranged by the parent to hunker down on. But in one Rhea nest, you may find between 50 and 80 eggs! And they’re not all from the same set of parents. Male Rheas mate with several females and then build a single nest on the ground to hold all the eggs from each of them.Listen to this episode in Spanish here.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.