Weighing about as much as four paperclips, Bushtits are smaller than many hummingbirds. And they take full advantage of their diminutive size. While larger insect-eaters forage on the upper surfaces of leaves, Bushtits hang beneath them, plucking all the tiny insects and spiders hiding out of sight. They pair off to nest. (This male Bushtit is working on his nest.) Where they live in Western suburbia, a flock of Bushtits can help rid a garden of harmful aphids and scale insects. Shun the pestici...
Mar 11, 2023•2 min
In 2022, ornithologists recognized the Chihuahuan Meadowlark as a separate species rather than a subspecies of the Eastern Meadowlark. Named after the northern region of Mexico where they're easy to find, Chihuahuan Meadowlarks live in dry desert grasslands. They form a distinct population in Mexico and the southwestern U.S., and have a song that sets them apart from other meadowlarks. More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to our weekly newsletter. Sign up for ...
Mar 10, 2023•2 min
The Magellanic Plover is known for being a bit of an oddball. These shorebirds have a round body like a dove and even feed their young with milk produced in a part of their digestive system called the crop — a rare trait they share with doves. But genetic data revealed that Magellanic Plovers are neither plovers nor doves — they’re the only species in the family Pluvianellidae. Genetically speaking, they’re one of a kind. More info and transcript at BirdNote.org . Want more BirdNote? Subscribe t...
Mar 09, 2023•2 min
An estimated 1.5 billion Red-billed Quelea live in Africa today, making them the most abundant of all wild birds. The sparrow-sized Red-billed Quelea flock together in groups so large, from a distance they appear to be clouds of smoke. Red-billed Quelea are in the weaver family and create tens of thousands of carefully woven nests in their enormous colonies. More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free lis...
Mar 08, 2023•2 min
Tracking devices revealed that Black Swifts spent over 99% of their time in the air during the winter, almost never touching the ground for months. What’s more, the swifts flew to incredible heights, reaching the highest altitudes on nights when the moon was full – sometimes over 13,000 feet! It’s the first time scientists have seen birds changing their altitude along with the cycles of the moon. More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to our weekly newsletter. S...
Mar 07, 2023•2 min
Birds evolved not only wings, but many other adaptations that make it possible to fly. Feathers provide insulation, waterproofing, and a lightweight means to become airborne. Birds have honeycombed or hollow bones, reducing body weight. And instead of weighty jawbones and teeth, birds evolved a light and serviceable beak made of keratin. Most birds consume energy-packed foods rich in calories – like seeds, fruits, and meat, which add as little as possible to a bird’s payload. And what they eat i...
Mar 06, 2023•2 min
To hear a Common Loon in the wild during summer, you’ll need to find a northern, freshwater lake where a pair is nesting. But to find that same Common Loon in winter, you’ll likely need to look on a saltwater bay. This shift from fresh to salt water would kill most animals. But loons — along with many ducks and other water birds — have evolved to make that move. It’s possible that breeding adults nest on fresh water in order to save their energy for raising chicks. More info and transcript at Bi...
Mar 05, 2023•2 min
The glorious song of the male Sage Thrasher rings out every spring from tracts of sagebrush throughout the West. Sagebrush was once widespread in the Great Basin region, and so were the thrashers. But huge areas of sagebrush were turned into alfalfa and potato farms, and the songs of the thrasher aren't so common today. Sagebrush badly needs advocacy. The Important Bird Areas program works to protect key habitats for birds. More info and transcript at BirdNote.org . Want more BirdNote? Subscribe...
Mar 04, 2023•2 min
Male Lance-tailed Manakins pair up to perform choreographed courtship displays for females. Known as cooperative courtship, it involves one alpha male and one beta male, who are not closely related, working together to attract the female. While it might not seem like a good deal for the beta male, the betas gain experience in courtship that could come in handy when they attain alpha status. More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to our weekly newsletter. Sign up...
Mar 03, 2023•2 min
While many birds have hollow bones that make flying a breeze, diving birds are built differently. The bones of divers such as Common Loons are denser than those of songbirds and other expert fliers. With a lightweight skeleton, they’d be too buoyant to dive and chase fish. Instead, loons can kick their powerful legs and webbed feet to swim 200 feet or more underwater! More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get a...
Mar 02, 2023•2 min
The Black-billed Magpie is a familiar sight throughout much of the West. The magpie's bulky nest is a rough sphere of sticks nearly three feet across, with entrance ports on the sides. Take a field trip with your local Audubon and see what you can see! 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....
Mar 01, 2023•2 min
In June of 2022, Adé Ben-Salahuddin worked as a volunteer research assistant on a tiny island off the coast of Maine at a Common Tern breeding colony. Every once in a while, the colony would suddenly go dead silent as all the adult terns took flight and dove over the rocky cliffs, returning soon afterward. This strange behavior is called a “dread,” and sometimes occurs without a predator nearby. It remains unclear why terns do it. More info and transcript at BirdNote.org . Want more BirdNote? Su...
Feb 28, 2023•2 min
For such a small owl, the Northern Saw-whet has a lot to say. And a lot of ways to say it. Males weigh about as much as an American Robin. And they send out at least 11 different calls, including “toot-toot-toot” advertising calls, from late January through May. The rate of calling is partly determined by the nighttime temperature. And perhaps to keep other Saw-whets out of a food-rich territory, males may toot more frequently when their favorite prey, white-footed mice and deer mice, are plenti...
Feb 27, 2023•2 min
After breeding on Arctic cliffs and tundra hillsides in summer, Rough-legged Hawks winter throughout the Northern Hemisphere. Open country is their ideal territory, where the small rodents they depend on are usually so plentiful that the hawks have enough to eat. But the rodents are cyclic, with lower populations in some years, and in those winters, Rough-legs may migrate farther and be more abundant in the contiguous United States. More info and transcript at BirdNote.org . Want more BirdNote? ...
Feb 26, 2023•2 min
Some species of birds try to save energy by tricking others into incubating their eggs. But if the parasitic female is a related species, she may have an advantage. After studying the nests of Common Eiders, such as the one pictured here, researchers at the University of Gothenburg in Sweden determined that trickery among close relatives of the nest owners caused no aggression. But the attempts of unrelated females often resulted in conflict. More info and transcript at BirdNote.org . Want more ...
Feb 25, 2023•2 min
Project FeederWatch is a community science project studying over 100 species of birds that spend their winters in North America. From November through April, people count the birds they see at a bird feeder, whenever and wherever they’re able, and submit their bird list to the project. 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 ...
Feb 24, 2023•2 min
During winter and early spring, Great Blue Herons build their nests high in the treetops. The male delivers the supplies to the nest site stick by stick, as the female arranges things. It’s the perfect childhood home for their young, made without blueprints, architects or engineers. But by early May, the chicks are starting to test the limits of their nests! More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free lis...
Feb 23, 2023•2 min
Vahé Alaverdian of Falcon Force, along with his Harris’s Hawk named PacMan, have partnered with the San Francisco Municipal Railway to deter pigeons from El Cerrito del Norte Station, where the situation had gotten dire. This form of pest management involves having a trained bird of prey fly around the area to frighten, not trap or kill. 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 perk...
Feb 22, 2023•2 min
In late winter, White-throated Sparrows erupt into song, easily set to human words: “Old Sam Peabody, Peabody, Peabody.” Or “Oh, sweet Canada, Canada, Canada.” But something changed since those classic memory aids were coined. Sixty years later, the bird sings a simpler, shorter song. Bird song, like human language, changes. By the 1960s, the bird’s longer song became rare. Researchers suggested that the “classic” song had — for some unknown reason — died out, to be replaced by a shorter version...
Feb 21, 2023•2 min
Like today’s swans, the extinct species Annakacygna hajimei and Annakacygna yoshiiensis were quite large. But unlike their modern relatives, these birds lived most of their lives out at sea, and their fossils reveal remarkable adaptations to this unusual lifestyle. This led the researchers who first described these species to dub them “the ‘ultimate bird’ that ever existed.” More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ t...
Feb 20, 2023•2 min
If any bird is an anomaly, it’s the Wilson’s Phalarope. In a birdbook, Wilson’s Phalaropes are found among the sandpipers. But they forage while swimming. Spinning like tops, they create an upwelling, pulling food to the surface. The breeding of Wilson’s Phalaropes is anomalous, too. Females are the brightly colored sex, and courtship roles are reversed: female phalaropes compete for males, and, once they lay eggs, leave all parental duties to the males. In common with many birds, though, Wilson...
Feb 19, 2023•2 min
It's late winter at Ding Darling National Wildlife Refuge on Sanibel Island, Florida. Many birds have finished nesting, and young birds are everywhere. This morning, wind and tide have conspired to strand schools of fish in backwater ditches. And the birds are taking advantage of it. It's a feeding frenzy! White Ibises, Great Egrets, Snowy Egrets, and American White Pelicans join in. Thanks to the National Wildlife Refuge System, these birds - and many others - can thrive in protected habitats. ...
Feb 18, 2023•2 min
Most wrens in North America are small, furtive birds that stay deep in the vegetation. But the Cactus Wren is large, bold, and brassy. These wrens are well adapted to the desert and can get all the moisture they need from their food. Cactus Wren nests are a regular sight in their range of dry habitats from West Texas to California. The nest looks like a football made of twigs, stuck horizontally in a thorny tree or cholla cactus. It’s easily seen but well guarded by the spiky vegetation. More in...
Feb 17, 2023•2 min
Over the course of four days in February, the Great Backyard Bird Count gathers heaps of info about birds all over the world — and helps people connect with their local birds. Anyone can participate with the Merlin Bird ID app . And if you’re familiar with your neighborhood birds, you can submit a checklist of all birds you see or hear on eBird . This year’s event is Feb. 17-20 – learn more here . More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to our weekly newsletter. ...
Feb 16, 2023•2 min
With brilliant crimson chests, green backs and blue crests, Rimatara Lorikeets are stunning birds. The last native population of the lorikeets survives on the island of Rimatara, thanks to the foresight of the island’s last queen, Temaeva Vahine, who placed a tapu on the birds, denoting them sacred. Rimatara residents, proud of their ‘rainbow’ birds, have teamed up with the Polynesian Ornithological Society to ensure the lorikeets are here for generations to come. More info and transcript at Bir...
Feb 15, 2023•2 min
For some birds, love is in the air. When a pair of White-throated Swifts wants to get to know each other, they meet up — on the wing — high above the ground. The birds grasp one another and, clinging together, tumble downward, for over 500 feet. Just before striking the earth, they separate, flying nonchalantly back up the canyon wall. Visit a Western canyon, and you might see a pair of swifts literally falling in love. More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to ...
Feb 14, 2023•2 min
In the Salt Flats of Cabo Rojo, Puerto Rico, the Indigenous Taino people found a way to harvest salt long before Europeans arrived. But this unique ecosystem isn’t just useful for sea salt production — the salty lagoons are full of brine shrimp for shorebirds to eat. Local residents banded together to protect the salt flats as bird habitat. 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 p...
Feb 13, 2023•2 min
Crane Hawks of Central and South America and African Harrier-Hawks both have legs that bend forward and backward. Each bird’s wonderfully peculiar leg adaptation is completely original - it evolved all on its own - even though the end result is the same. Scientists call this convergent evolution. 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-deduc...
Feb 12, 2023•2 min
That’s not a distant dog barking. It’s a Black Skimmer in flight, at the Chincoteague National Wildlife Refuge in Virginia. This striking, black-and-white bird with a red bill and red feet has a most unusual way of feeding. It flies low along the surface of the water with its beak open. Closely related to terns, skimmers nest on sand islands in closely packed colonies. They depend on undisturbed islands and abundant small fish in coastal lagoons for their survival. More info and transcript at Bi...
Feb 11, 2023•2 min
Organized by the Cornell Lab of Ornithology, Project NestWatch is made up of volunteers around the world who monitor bird nests, reporting whether the birds successfully raise their young. Joining the project involves a bit of online training, finding a nearby bird nest, and briefly checking on it every 3-4 days without disturbing the birds. 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 ...
Feb 10, 2023•2 min
