Before chimneys existed, Chimney Swifts relied on old hollow trees for nesting and roosting. They can’t perch, they can only cling to a rough vertical surface. As developers cleared old growth forests, Chimney Swifts began using human-built structures. But building styles have changed, making traditional brick chimneys rarer. Pesticides have reduced the populations of swifts’ insect prey. People can help swifts by leaving brick or stone chimneys open from April to October and avoiding pesticides...
Mar 04, 2024•2 min
Does the image of a frozen birdbath bring to mind a small yellow bird with ice skates? Birds need water in all seasons, for drinking and for bathing. When the water is frozen, you can thaw it with hot water. Or go the slightly more expensive route and add a heater. 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 pos...
Mar 03, 2024•2 min
Before we see or feel spring, we often hear it first — in the testimony of a Red-winged Blackbird, the energy of a Song Sparrow, or the serenade of an American Robin. But across much of North America, an earlier sign of spring is the return of Turkey Vultures. In the U.S., you may see them as early as February or March. Unlike most of our returning birds, which migrate at night, Turkey Vultures migrate like hawks — in the daytime. They rise on warm spring updrafts, with a distinctive teeter from...
Mar 02, 2024•2 min
For years, nature recordist Lang Elliott came up with clever ways to hear high-pitched bird songs despite his high-frequency hearing loss. Lang teamed up with a programmer to develop an app called Hear Birds Again. Currently it’s only available for iPhones, but it’s able to take high-pitch bird songs and shift them down into a lower range. 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 pe...
Mar 01, 2024•2 min
With a graceful leap, wings outstretched, Sandhill Cranes welcome the longer days. The stately cranes are courting, renewing an annual dance they perform in earnest as the days lengthen into spring. Sandhill Crane pairs remain together for life, and their spirited dance plays an essential role in reaffirming this bond. 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 no...
Feb 29, 2024•2 min
Dr. Clinton Francis is a sensory ecologist who studies how noise pollution affects birds, like this Black-headed Grosbeak. He says sounds from machines and vehicles can really disrupt bird behavior. Although birds rely on hearing to sense predators and prey, and to find mates, their sense of hearing isn’t very good, making them very sensitive to noise pollution from machines and vehicles. Fortunately, there are many ways to help birds by reducing noise pollution. More info and transcript at Bird...
Feb 28, 2024•2 min
When Day Scott teaches people how to take pictures of birds, she emphasizes observing birds carefully before picking up the camera. Sometimes that means choosing whether or not to even attempt a photo. In this episode, Day shares a story about choosing whether or not to try and photograph a rare Painted Bunting in her area or to see the bird in high-definition through her binoculars. More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to our weekly newsletter. Sign up for Bi...
Feb 27, 2024•2 min
Some plants have evolved fruits with edible flesh that attract birds. When birds swallow the fruit, they also ingest the seeds. They transport the seeds to new spots for the plants to take root. Birds’ digestive systems grind away the hard outer coating of the seed, making it more likely to germinate. Seeds in a bird’s droppings are pre-packaged in nutrient-rich fertilizer. More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to...
Feb 26, 2024•2 min
Hummingbirds are built for hovering flight, with flexible wrists that rotate their wings in a rapid figure-eight motion that generates almost constant lift. Eurasian Skylarks, on the other hand, hovers by fluttering its wings 10-12 times per second, singing all the while. Some raptors such as American Kestrels use a different strategy: by flying into the wind, they can float in place while they scan for prey. More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to our weekly ...
Feb 25, 2024•2 min
In the 1990s, train engineers in Japan built trains able to travel nearly 170 miles per hour. The problem was that when the trains exited a tunnel, the air in front of their bullet-shaped noses expanded rapidly, creating a loud “tunnel boom.” The chief engineer, a birder, looked to the shape of a kingfisher’s bill to design long, narrow train noses that parted the air. The trains became both quieter and more efficient. More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to o...
Feb 24, 2024•2 min
While many shorebirds have gone south, tiny sandpipers called Sanderlings are easy to find on winter shores. They follow the waves as they lap in and out, probing the swirling sand for prey. They often eat various small crustaceans such as mole crabs, isopods, and amphipods. But they also enjoy miniature clams, polychaete worms, and horseshoe crab eggs. They’ll even catch flying insects or eat plant matter. More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to our weekly ne...
Feb 23, 2024•2 min
Artist Debra Ramsay became fascinated with the way that birds and their colors mark changes in the seasons. In her “Migrations” project, she painted species seen in New York’s Central Park, creating an abstract design from the three main colors of each bird. Debra layered colors into thick plexiglass panels, so the paintings appear to change when seen from different angles. More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to...
Feb 22, 2024•2 min
Tennessee Warblers love drinking nectar, but they do it without helping to pollinate flowers. By tapping a hole into the base of a flower, these warblers enjoy an easy meal while bypassing the flower’s pollen. But they give back to their ecosystems in other ways – such as eating countless insects! 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-dedu...
Feb 21, 2024•2 min
When the shorebirds called Lesser Yellowlegs sense a threat to their nest, they’ll put up an unforgettable racket to drive the danger away. Smaller and with a shorter bill than the Greater Yellowlegs, Lesser Yellowlegs sing to attract mates, while flying or perching up in a tree like a songbird. Although they’re widespread, Lesser Yellowlegs have lost over half their numbers in the last 50 years. Protecting wetlands, addressing climate change, and using sustainable farming practices can all help...
Feb 20, 2024•2 min
For most birds, keen eyesight is critical for survival. But many birds lead lives that can be very hard on the eyes — like flying at breakneck speed, racing for cover into a dense thicket, or diving under water to capture prey. Imagine how the chips fly as this Pileated Woodpecker chisels a cavity. Fortunately, birds have evolved a structure for protecting their eyes. Beneath the outer eyelids lies an extra eyelid, called the nictitating membrane. It helps keep the eye moist and clean while guar...
Feb 19, 2024•2 min
Fresh-fallen snow is beautiful, but it poses a challenge to birds. The ground where they found food is now covered by several inches of snow. Birds such as juncos and other sparrows flit under bushes where snow doesn’t cover the ground. Finches and chickadees pick at the seed heads of plants sticking out above the snow, while robins (like this American Robin) seek out dried fruits. Nuthatches and woodpeckers cling to trees as they search for insects within the bark. More info and transcript at B...
Feb 18, 2024•2 min
On a winter morning in Costa Rica, a colorful choir welcomes the day. A pair of Bay Wrens sings a brisk duet just before sunrise. Perched in the upper canopy of the tropical lowland forest, a group of Keel-billed Toucans calls out. In a nearby tree, Purple-throated Fruitcrows (like this one) add their voices to the chorus. Then a male Montezuma Oropendola belts out an electrifying series of notes — one of the most distinctive voices in the tropics. Finally, a Bright-rumped Attila calls from its ...
Feb 17, 2024•2 min
In several neighborhoods of Sydney, Sulphur-crested Cockatoos have learned ways to open trash bins and grab some leftover food. Researchers found that birds in a given suburb seem to learn their trash bin opening technique from nearby birds, leading to subtle differences in how cockatoos raid the garbage throughout the city. This has pitted two highly intelligent species against each other as people have tried to come up with deterrence methods to keep birds away from the trash. More info and tr...
Feb 16, 2024•2 min
Sam ‘Ohu Gon was one of the last people to see an ‘Ō‘ū, a native Hawaiian bird that’s presumed to be extinct. He’s worked at the Nature Conservancy of Hawai‘i for nearly forty years. In 1988, he took part in an Audubon Christmas Bird Count, hoping to encounter critically endangered native 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 perks. BirdNote is a nonprofit. Your tax-deduct...
Feb 15, 2024•4 min
Birds have many ways of showing affection for their partners. One way is allopreening, where a bird uses its bill to groom a mate, twirling each individual feather in its beak (like these Macaws). Other birds present their partners with gifts like moss or sticks. A female Arabian Babbler might reciprocate with a gift of her own — or just cut to the chase and lead her suitor to a rendezvous spot in the shrubbery. More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to our week...
Feb 14, 2024•2 min
The Keel-billed Toucan, also known as the Rainbow-billed Toucan, looks like a bird with a giant banana for a beak. They have a black body, a yellow patch from the face to the breast, and a huge rainbow-colored bill. The big beaks have more than one use: they can be used for fighting with rivals, but they can also help toucans regulate their body temperature in the tropical heat. More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNot...
Feb 13, 2024•2 min
The American Robin and the Baltimore Oriole both have cheery, upbeat songs. At first, you might think there’s no way to tell these two cheery, upbeat singers apart. But there are a couple of differences. American Robins usually have a longer song, while Baltimore Orioles usually stop after a phrase or two. Plus, Baltimore Orioles sound sweeter and more melodic than American Robins, who can come across a little screechy at times. More info and transcript at BirdNote.org . Want more BirdNote? Subs...
Feb 12, 2024•2 min
When the bitter cold of winter arrives, songbirds face an emergency: how to keep warm through the night. On normal nights, many prefer sleeping solo in a sheltered spot. But in severe cold, some kinds of birds may have a greater prospect of survival by roosting with others. 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 ...
Feb 11, 2024•1 min
Trumpeter Swans weigh over 25 pounds and measure about five feet from beak to tail. They were nearly hunted to extinction by the turn of the twentieth century. In Arkansas, a small flock of Trumpeter Swans began spending the winter at Magness Lake in the 1990s. It has now grown to one of the biggest winter swan flocks in the Southeast. In recognition of its value to the swans, Magness Lake has been designated an Important Bird Area. More info and transcript at BirdNote.org . Want more BirdNote? ...
Feb 10, 2024•2 min
In some parts of North America, Sandhill Cranes are common as ants at a picnic. In New England, on the other hand, they’ve been almost as rare as pterodactyls — until relatively recently! Birders began reporting cranes scattered throughout the region. When a Sandhill Crane chick hatched in Maine in 2000, it was evident the New England birds were not just strays. Cranes now breed in several parts of New England, especially Massachusetts. More info and transcript at BirdNote.org . Want more BirdNo...
Feb 09, 2024•2 min
Do you ever see flocks of birds in your yard that show up in droves one year, but are completely absent the next? Some nomadic species such as Pine Siskins move based on the availability of food and habitat. It’s called “irruptive” migration, and it sometimes leads to backyards full of siskins. While these flocks are a delight for bird watchers, the dense groups can easily transmit diseases such as salmonellosis. More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to our wee...
Feb 08, 2024•2 min
Roads can get people where they need to go. But they often run right through wildlife habitat, creating a deadly hazard for animals on the move. Liz Hilllard, who’s the Senior Wildlife Biologist for Wildlands Network, says roadkill takes a huge toll on birds and other animals every year. Wildlands Network helps transportation agencies create wildlife-friendly designs and build animal-centric bridges and tunnels for their safe crossing. The goal is to create a connected landscape that Liz and her...
Feb 07, 2024•2 min
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. 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....
Feb 06, 2024•2 min
Look for the stories birds tell with their tracks in the snow. A crow swaggers, leaving right-and-left steps much as a walking human would. Juncos under a birdfeeder leave a hopping pattern of tiny footprints in side-by-side pairs. Look for beak marks, where a bird picked up a choice morsel or probed the ground. Tell-tale signs sometimes tell stories of life and death. You might see mouse tracks end suddenly, just where you find the imprint of an owl's wings. Find out more about animal tracking ...
Feb 05, 2024•2 min
In this BirdNoir mystery, the private eye fields a call from a woman who says a large bird that looks like a Bald Eagle stole a Rainbow Trout from her pond. Through a process of elimination, the detective is able to rule out a few likely suspects and arrive at the probable answer. When you think you’ve spotted an eagle, remember to examine all the evidence. More info and transcript at BirdNote.org . Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free list...
Feb 04, 2024•2 min
