While many songbirds are accomplished soloists, some of the bird world’s most impressive performances are actually duets. Escucha este episodio en español.

Golden-cheeked Warblers, Black-throated Green Warblers, Townsend’s Warblers, and Hermit Warblers share similar songs and plumage. Though they all breed in different areas of North America, they can often be found flocking together on wintering grounds in Central America. Genetic studies…

White-tailed Kites are distinctive birds of prey. They only live in a few states in the U.S., but they’re common in grasslands throughout much of Central and South America where they hunt for rodents and small prey. Though White-tailed Kites are globally abundant, they still face threats…

Rock Pigeons are one of the most common urban birds. But why do we never see baby pigeons? Some baby birds — like down-covered ducks, geese, and chickens — leave their nest shortly after hatching and do a lot of growing up while following their parents around. Others, like pigeons, depend…

A chill wind ruffles the feathers of a male Sagebrush Sparrow (formerly known as the Sage Sparrow), as he sings atop a tall sagebrush. It is late February, a few miles from the Columbia River in Central Washington. Sagebrush Sparrows are arriving north from wintering in the Southwestern…

The spider’s web is an intricate piece of precision engineering. Made from large proteins, it’s sticky, stretchy, and tough. So it’s no surprise that many small birds — including this Anna’s Hummingbird — make a point of collecting strands of spider silk to use in nest construction. Spider…

The American Kestrel is the smallest, most numerous, and most widespread North American falcon. This bird is built for speed, its long pointed wings often bent back at the tip. While hunting, kestrels hover above an open field. These days, the lack of suitable nesting cavities, which…

When a soaring Short-toed Snake-Eagle spots a delicious snake, it swoops down, grabs it with its talons, then tears off the snake’s head. Still on the wing, it swallows the entire snake, head first. Smaller than Bald Eagles, they live mainly in Africa and have legs and toes covered in…

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…

A male Eastern Bluebird stands on a wooden nestbox attached to a fence post. The bluebird’s song – and his alert presence – assert his claim to this territory. In the mid-20th Century, the numbers of bluebirds in the Northeast declined to the lowest level ever, due largely to nesting…