BirdNote Daily

In the October sunlight, a Lincoln's Sparrow – like this one – sings energetically from a hedgerow. Soon a Fox Sparrow chimes in. Both nested in Alaska last summer but will spend the winter farther south. The Snow Geese are moving, too. A massive movement of birds takes place in the fall. The exodus of summer visitors to the tropics has given way to a surge from the north. And predators can't be...

Most birds are mostly waterproof. Their feathers, aided by oil from preen glands, keep them pretty watertight. So why do birds avoid flying during rainstorms? It may have more to do with the air than with the water. Rainstorms tend to occur when atmospheric pressure is low. Air in a low-pressure system is less dense. But it’s dense air that gives birds the aerodynamic lift they need to take wing....

Through all of spring and summer, swallows dart and sail overhead, their airborne grace a wonder to behold. But by October, the skies seem empty. Most swallows have flown south, in search of insects. The eight species of swallows that nest in the U.S. — including the Cliff Swallow — migrate south to Central or even South America. Watch for them again next spring!More info and transcript at...

Brianna Amingwa is a birder, environmental educator, and mom of two bird-loving boys. In this episode, Brianna shares one of her favorite, tried-and-true techniques for sparking curiosity with kids outside. This easy activity has a funny name: INIWIRMO. It’s an acronym for I Notice. I Wonder. It Reminds Me Of. INIWIRMO works by inviting kids and adults to turn each phrase into a statement about...

In Lafayette Park in St. Louis, Missouri, a dozen or so Eurasian Tree Sparrows from Germany were released. But unlike other introduced species such as the similar-looking House Sparrow, they did not spread very far and remained in a limited area in the Midwest. It’s not fully clear why, but it’s possible that they just behave differently. And the aggressive House Sparrow may have helped prevent...

There’s no wrong place to search for birds — looking out the window and listening for calls and songs is a great place to start. But you might be curious where else to look. In this episode, get a few quick tips on good places to find birds. Listen to this episode in Spanish. More info and transcript at BirdNote.org. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to...

In general, the bigger the bird, the higher the number of feathers. Someone counted the feathers on a Tundra Swan and came up with 25,216. At least 80% were on the swan’s neck. Penguins, on the other hand, have lots of small feathers all over their bodies. The largest species is the Emperor Penguin, and one project counted around 80,000 feathers on a single bird. That’s nearly sixty per square...

Compared to many birds, Great Horned Owls remain with their parents a long time. They hatched in early March, from eggs laid in late January. By April, both parents were hunting through the night to feed their young. But for the last two weeks, the adults have not fed the young. The owlets have learned the skills they need to hunt for themselves. And any night now, the young owls will strike out...

Birds called prions have an especially creative approach to getting their food. They pass seawater through their mouths and filter it to catch tiny animals such as krill and other small crustaceans. It’s similar to how baleen whales feed, leading to the prion’s nickname: the whale-bird. The sides of their bills have comb-like structures. Small food items get trapped in the combs as water flows...

Brown-backed Solitaires are ordinary-looking: medium-sized, gray-brown birds. But they have one of the most melodic, complex songs in the world, ringing out year-round in high-altitude forests from Mexico to Central America. Listen to this show 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...