The harsh caws of American Crows are one of the most familiar bird calls in North America. Fish Crows sometimes join flocks of American Crows as they forage for food. The two crow species look similar, but have a distinct call that sounds a bit like an American Crow with a stuffy nose. The…

In this episode, we meet Aviary: the superhero alter-ego of a mild-mannered birder bitten by a radioactive feather mite. Aviary became able to shapeshift into any of the birds they've seen in their travels — taking on the ultra-fast flight of a falcon or the super-swimming skills of a…

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…

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…

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…

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…

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…

Cuando las aves playeras conocidas como patamarillas menores perciben una amenaza para su nido, arman un tremendo escándalo para ahuyentar el peligro. Estas aves son más pequeñas y tienen un pico más corto que las patamarillas mayores. Las patamarillas menores cantan para atraer a sus…

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…

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…