Composers from Vivaldi to Beethoven have been inspired by birdsong. But how similar is birdsong to the music we create? Two recent studies offer contrasting answers. One analysis used nearly 250 song examples of the Nightingale Wren, pictured here, a tropical bird widely admired for its…

The Common Merganser is one of our biggest ducks, about the size of some loons. Although it’s not closely related to loons, it has evolved a similar overall structure and predatory behavior. But a merganser has a unique feature: tooth-like serrations along the edge of the bill that help…

One of the easiest ways to keep a finger on the pulse of the seasons is to keep an eye on the birds. When do the Dark-eyed Juncos (like this one) return from the mountains, ready to pick up at the birdfeeder where they left off last year? When do migratory Canada Geese fly over on an…

On June 23, 2000, the "MV Treasure" iron ore tanker sank off the coast of South Africa, covering 19,000 adult African Penguins in oil. Fortunately, thousands of volunteers arrived to help. The oily birds were moved to Cape Town to be cleaned. Another 19,500 penguins that escaped the oil…

Unlike the black and white magpies of the American West, the Indochinese Green-Magpie is vivid green with bright red wings and a red beak. The Sri Lanka Blue-Magpie is rich rusty-brown and dark blue. Altogether, there are five blue-feathered magpies and four green, all living in warm zones…

Forty to fifty million years ago, when the climate of the Antarctic was mild and seasonal, some of the largest birds ever known flew and hunted over its waters. They’re known as bony-toothed birds. Fossils show that most had wingspans of more than 12 feet. Their beaks were evenly studded…

Magnificent Frigatebirds are huge, gangly seabirds found around the warm waters of the Western Hemisphere. When it comes time to mate, males inflate giant red throat sacs, then rattle and drum their bills against them to create jazzy percussive sounds.

Have you seen a larger bird dipping its sharp bill into your hummingbird feeder? It’s probably an oriole. These brightly colored birds winter in the tropics, where they often drink nectar from flowers. Tennessee Warblers — like this one — are often seen at flowers during migration. These…

Avalanches tend to follow historic channels down the face of a mountain, sweeping with them standing trees and boulders, while adjacent slopes remain clad in evergreens. Such natural snow courses are known as avalanche chutes. Soil often remains, creating a new opening for pioneering…

For years, we thought that when a bird perched on a branch to sleep, a specific tendon in its heel kept its feet locked on tightly. Another hypothesis claimed that it’s the internal structure of the birds’ toes that keeps them securely perched. But recent research suggests that the answer…