Red-tailed Hawks are found year ‘round in a wide variety of natural landscapes, from meadows to forest edges, deserts, and canyons. One big reason we see Red-tailed Hawks in so many places is their remarkable adaptability as hunters. They vary their diet to what is locally abundant. So…

The dense cover of coastal chaparral supports many birds found nowhere else in the world, including this California Thrasher. The plant species are different, but the chaparral of California is much like shrubby coastal vegetation in southern Europe, South Africa, southern Australia, and…

The Canyon Wren and Cactus Wren share common ancestry — and they’re close neighbors in the desert southwest. Yet their songs evolved along divergent acoustic lines. The rough trilled phrases of the Cactus Wren song pulse through the dense cactus, while the clear tones of the Canyon Wren…

Almost half of all migratory shorebirds nesting in North America migrate through the Cheyenne Bottoms Wildlife Area in central Kansas. Almost all of the continent's Wilson's Phalaropes rest and refuel at the wetlands here. The birds fly a great oval route. In autumn, in the East, they head…

In the mid-1990s, a golden age of fossil discovery began in the Liaoning region of northeast China. The fossils date from 120 to 160 million years ago, when feathered dinosaurs and early birds were flourishing and differentiating. The signature fossil was the world’s first-known feathered…

Some bird songs leave us in admiration of their beauty, some with a sense of wonder at their complexity—and others are downright comical. As a maker of silly sounds, the male Willow Ptarmigan beats the Three Stooges hands down. But these sounds are no laughing matter. Where it nests in the…

In May, we celebrate migratory birds, including this Common Yellowthroat. The Migratory Bird Treaty Act of 1918 gave much needed protection to birds, especially migratory songbirds. In 1940, the US and 17 other countries throughout the Americas signed a pact to "protect and preserve - in…

Acorn Woodpeckers live in family groups of up to 15 individuals. Over time, if enough birds die off, an opportunity arises for unrelated birds to join the group and obtain a mate. Then, battles known as “power struggles” begin. Birds from other family groups form coalitions, with up to 30…

The Ruby-crowned Kinglet is one of North America’s tiniest songbirds. At just four inches long and weighing less than a quarter of an ounce, it’s affectionately known as “Little Rickie,” based on the official four-letter code: RCKI. But the tiny bird has a big voice—the male sings a loud…

The sapsucker is a type of woodpecker that notches rows of small holes in trees, causing sap to well out. The birds eat the sugary liquid flowing from these sapwells. Tree sap is similar in sugar content to the nectar hummingbirds take from flowers. And it is no coincidence that just as…