Some ducks don't sound like ducks at all. Some — like the Harlequin — squeak. Harlequins are unique in other ways, too. Quick and agile in rushing white water, they dive to the bottom of mountain streams for food, and use fast-flowing rivers for breeding. If you're lucky enough to spot a…

Although American Crows may seem blasé about pillaging another bird's nest, they regard a threat to their own young as a punishable offense. To protect their nest, adult crows dive-bomb people, cats, other animals, and even other birds. Young crows fledge when they are around five or six…

Common Swifts in Europe nest in eaves and under roof tiles and gables. But modern construction doesn’t have these nooks and crannies, and populations of swifts have been declining. However, there’s a solution called the “swift brick,” a small nesting box that fits right into the wall of a…

At this time of year, a very young male Bewick's Wren is beginning to learn how to sing. His father sings a crisp well-defined song, separated by pauses, but the young bird's song is fuzzy, unfocused, a little rambling. Each adult male Bewick's Wren has his own set of unique songs. A young…

The Okefenokee National Wildlife Refuge was set aside to protect the fabled Okefenokee Swamp of Georgia and Florida. Tall cypress trees and Spanish moss give the swamp a prehistoric appearance. The Prothonotary Warbler is one of the most striking of the swamp’s denizens. Having wintered in…

Tree Swallows glisten in the June sunlight, as they swoop and glide, their arcs interlacing in the air. When a white feather flutters down among them, one swallow snatches the feather in its bill and flies upward, as another gives chase. After a moment, the lead bird lets loose the feather…

In marshes across the country, birds awaken on a summer morning. Tall dense grasses and reeds often make marsh birds hard to see, but their voices carry easily across the lush, green landscape. You can hear birds like the Redhead, the Sora, the American Bittern, the Ruddy Duck, this Yellow…

What a comfort it would be if every bird song were as easy to recognize — and remember — as that of this Olive-sided Flycatcher. Some people think it sounds like "quick-THREE-beers" or "what PEEVES you." Do you drink coffee? Then you can help Olive-sided Flycatchers, when you choose to…

Just because a young bird appears to be alone – whether on the ground or squawking loudly from a bush or tree – doesn't necessarily mean it is sick or injured. In June, young birds, including this juvenile Northern Flicker, are leaving their nests. And most likely, a parent is near-by and…

Bird beaks, or bills, come in many shapes and sizes. And birds use them for just about everything: to collect food, preen, fight, court, and more. In order for a bird to fly, its beak must weigh as little as possible. Beaks are covered with a sheath of a tough material called keratin…