BirdNote Daily

Bar-headed Geese, champions of high-altitude migration, leave their nesting grounds in Tibet and scale the Himalayan range on their way to wintering grounds in the lowlands of India. How do they do it? These geese have a breathing structure that extracts oxygen from thin air, even at 30,000 feet. Inhaled air passes through the lungs and is temporarily stored in several sacs, then circulated back through the lungs. The capillaries in their breast muscles are more numerous than in other birds, providing the muscles with a greater supply of oxygen.

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 the desert Southwest, water can be scarce. Yet some birds, like this Black-throated Sparrow, thrive in a scorching landscape. The birds obtain moisture from foods like nectar and fruit, as well as insects and other prey. They tuck into the shade in the heat of the day, so they won’t lose water in panting. And they have extremely efficient kidneys, so they excrete almost no liquid. Amazing!

The soundscapes featured in today’s show were recorded by Gordon Hempton and provided courtesy of QuietPlanet.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.

With their excellent sense of smell, pigs are renowned for sniffing out truffles, a fungus that grows underground and is prized for its taste. But it turns out that some bird species can also find their way to a truffle treat. Researchers working in the Patagonia region of Chile had noticed truffles with little beak-sized bite marks, and even watched a bird eat a truffle. They found truffle DNA in the birds’ droppings, suggesting that truffles are a staple of the birds’ diet. Some of the fungi species eaten by the Patagonian birds look like berries that grow locally, which might help birds see them better. 

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.

Ranger Evan Smith of New Zealand’s Fiordland National Park is, according to one visitor, “a bit of a legend.” Since 2011, Ranger Smith has raised money to help protect native birds from stoats, a kind of weasel introduced from Europe.  When he began working on the Routeburn Track hiking trail 20 years ago, he didn’t see or hear many birds. His nightly “hut talks” has helped the project raise $200,000 for stoat control. And summer by summer, the park sees more bird life along the trails.

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.

On the shore of a saltwater bay, the tide goes out, revealing a broad expanse of dark, glistening mudflat. Mudflats are rich in nutrients, such as decomposing organic matter and minerals. Far from wastelands, mudflats also support a bounty of life including vast quantities of tiny snails and clams, worms, crustaceans, larvae, and much more. Millions of shorebirds - including these Lesser (right) and Greater (left) Yellowlegs - follow shorelines and their mudflats each spring and fall, where they feast upon those tiny creatures hidden beneath the mud's surface, a banquet that powers the birds' continent-spanning migrations.

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.

Savannah Sparrows are abundant in open habitats throughout North America. In spring, they migrate north from the Southern US and Mexico to open agricultural fields, meadows, coastal grasslands, salt marshes, and even tundra to breed and raise young. They nest on the ground and walk, run, or hop to catch insects and spiders. When you get the chance to hear one, you might mistake it for an insect.

More info and transcript at BirdNote.org. 

If you ever miss a BirdNote, you can always get the latest episode. Just tell your smart speaker, “Play the podcast BirdNote.”

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 2020, the first Black Birders Week celebrated the contributions of Black birders and called for greater inclusivity in the outdoors. Later that summer, the first Black Botanists Week premiered. Georgia Silvera Seamans, an urban forester, helped organize the event. Now in its third year, the week helps foster a community of Black people passionate about plants and highlights the importance of making green spaces accessible to everyone. 

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.

Despite its name, the Burrowing Owl doesn’t do much digging. It’s better known for its hair-raising hiss, which may have evolved to mimic the warning of a cornered rattlesnake. The sonic threat of a venomous reptile could be just enough to warn away most unwanted visitors from the owl’s nest burrow. In one experiment, ground squirrels were nearly as alarmed by the Burrowing Owl’s hiss as they were by the recording of a real rattlesnake!

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.

Although the American Crow may seem blasé about pillaging another bird's nest, it regards a threat to its own young as a punishable offense. To protect their nest, adult crows dive-bomb people, cats, and other animals, and even other birds. Young crows fledge when they are around five or six weeks old, and their parents continue to care for them for months.

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.

Swooping and diving through the air on its long slender wings, the Common Nighthawk emerges at dusk to chase down aerial insects. Nighthawks have short bills that open wide, so they can vacuum up their insect prey as they fly along.

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.