Long-tailed Ducks are back for the winter from the north, where they nested on tundra ponds and marshes. These diving ducks spend the winter in deep salt water, often in sheltered bays. Long-tailed Ducks are far more vocal than most ducks, a feature that has earned them a host of charming…

There are nearly ninety species of wrens in the world, and quite a few are exceptional singers. Nearly all of them reside in the Western Hemisphere, with the majority living in Central and South America. The White-bellied Wren ranks among the tiniest, at just under four inches, while the…

For small songbirds, surviving a cold winter night can be challenging. Their bodies lose heat faster than those of larger birds. So little birds have found resourceful ways to stay warm — like huddling close together with other birds. But the Verdin, a tiny bird of the Southwest, does…

Sharp, insistent cries signal the presence of one of North America’s most beautiful birds of prey: the Red-shouldered Hawk. There’s no mistaking this striking hawk for any other; the front of its body glows bright chestnut, the back boldly spangled black and white, the shoulders, that same…

This American Robin has caterpillars and an earthworm in its beak. But which food source is the real prize? Everyday earthworms are higher in protein than beef or chicken. You’d have to eat about a pound of soybeans to equal the protein in just three ounces of earthworms. They’re also high…

One bird of prey may steal another's meal, a behavior that biologists call piracy, or kleptoparasitism. The prey may change hands several times, perhaps from Northern Harrier to Peregrine Falcon to Bald Eagle. The Peregrine - like the one seen here - may steal a meal, or have its meal…

It turns out, a raven's black plumage works quite well in the desert. Black feathers do conduct the sun’s warming rays, but they concentrate that solar heat near the feathers’ surface. All it takes is a breeze from the wind, or from flying, to move all that heat away from the surface of…

A pint-sized Northern Pygmy-Owl, not much bigger than a pine cone, hoots from a tree-top on a winter morning. Before long, this diurnal owl - a determined predator of small birds and mammals - will attract a mob of a dozen or more small birds. Mobbing may be a collective response to danger…

For today’s bird walk, we’re going to need binoculars, sunscreen, hiking boots, annnnnd a time machine. Let’s set our course for the late Cretaceous Era, 65 million years ago. Stay alert! There are dinosaurs all around us, of all sizes — and appetites — including some of the earliest birds…

For most birds, wings are for flying. But for Rock Pigeons, they’re also for clapping. When the pigeons erupt into flight, some may slap their wings together above their bodies in a “wing clap.” A male Rock Pigeon will also do this when courting. Short-eared Owls, like this one, have…