BirdNote Daily

In this episode of BirdNoir, Private Eye Michael Stein gets a call from his friend Billy, a mail carrier. Billy says he hasn’t seen a single bird on his route since the storm came into town, even though at this time of year the streets are usually chock full of birds. He asks, what happens to birds when it rains?

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As thousands of army ants march through a rainforest in Panama looking for food, countless insects try to escape. Antbirds follow the ants, waiting for flying insects to leave their hiding spots so they can swoop down and catch them. About 300 species of animals, including 29 bird species, depend on army ants for their survival. It’s thought to be the largest association of animals tied to a single species in the world.

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Boreal Owls are highly adapted to hunt in long hours of winter darkness. Uniquely, one ear opening in the skull is set high and the other much lower, an asymmetry that helps to pinpoint the sound of tiny rodents under the snow. They also have a pronounced disk of feathers encircling their faces that funnels sound to the ears. The staccato notes of the male’s song can carry for more than a mile on spring nights.

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Humboldt Penguins living along the Pacific Coast of Chile and Peru are adapted to cold. But on land, temperatures rise to 100+ degrees, and penguins need to cool off. So these penguins have pink patches of bare skin on their face, under their wings, and on their feet. On hot days, the patches turn a deep, rosy color, as blood rushes to the surface to dissipate heat. They appear to be blushing, but they’re really flushing!

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To our ear, the haunting song of this Hermit Thrush is musical, even ethereal. To another Hermit Thrush, the song signals that a male is laying claim to a territory and seeking a mate. These thrushes, like other songbirds, broadcast a variety of calls. Call notes can signal many things – alarm at a predator or aggression toward a rival. Or they may simply maintain contact between members of a pair or flock. So the next time you hear a bird sing or call, listen carefully. You may be introduced to a whole new vocabulary.

What birds are singing and calling around your home? Let us know on Facebook.

More info and transcript at BirdNote.org. 

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With their bare heads, long legs and massive bills, Wood Storks seem to have flown out of a fairytale — but in the American South they’re a real-life part of the ecosystem. Developers drained large areas of wetlands, causing the Florida Everglades population to decline to just 5,000 breeding pairs in the 1970s, placing them on the endangered species list. Habitat protection and restoration efforts have helped Wood Storks begin recovering, although they still struggle to find suitable breeding habitat in south Florida.

More info and transcript at BirdNote.org. 

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Mallards are found virtually everywhere there is open water, from city parks and subalpine lakes to sheltered bays and estuaries along the coasts. In their breeding plumage, male Mallards are avian dandies. The male's primary goal is to attract a mate and defend the breeding territory. The female's is to blend in with the natural surroundings, while incubating the eggs and caring for the young. And the female Mallard is the only one that can quack!

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When Janet Ng was a kid, there was a very specific moment when she realized what she wanted to be as a grown-up: seeing a wildlife biologist being interviewed in a documentary and realizing that was a possible career path. Now working for the Canadian Wildlife Service and surveying birds in Canada’s southern plains, Janet and her colleagues help find out whether bird populations are increasing or declining, so that we know which species need the most help.

More info and transcript at BirdNote.org. 

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Geese migrate north between February and April, making stopovers along the way to rest and eat. Most are bound for their breeding grounds in the far north. But we’ll hear them again soon, on their way back south in October. Click play and learn how to tell some North American species apart by sound!

More info and transcript at BirdNote.org. 

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For years, scientists debated whether the first flying dinosaurs, the ancestors of modern birds, began by running and making little hops off the ground, or leapt off a tree branch to glide. It’s called the “ground up vs. trees down” debate, for short. But a newer perspective on this mystery suggests that flying dinosaurs tried taking flight from more than one place. Recent findings suggest that the ability to fly could have evolved not just once but three separate times among dinosaurs.

More info and transcript at BirdNote.org. 

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