When a pair of Western Grebes decides it’s time to mate, they call loudly and approach one another. Each bird curves, then straightens, its long neck gracefully. They then face each other, necks on the water’s surface, their bills flipping up drops of water. If attraction prevails, they…

Many Brown-headed Nuthatches make their home in the tall longleaf pines of the Apalachicola National Forest in Florida. Twittering constantly, the birds probe for tiny insects or extract seeds from cones in the trees’ upper branches. Forests of longleaf pine once dominated the sandy…

Like most juvenile shorebirds, this young Black-bellied Plover was abandoned by parents that began their southbound flights from the Arctic National Wildlife Refuge a few weeks earlier. It will join other young Black-bellied Plovers as they make their way south. This little flock of birds…

When birds like these Dunlin form flocks, each individual is less likely to be captured by a predator. Some shorebirds that forage with their heads down, like godwits, will flock with birds that forage with their heads up, like curlews. Still other birds work together — like American White…

One of two species of cuckoos in North America, the Yellow-billed Cuckoo, pictured here, lives in broadleaf forests throughout the East and riparian stands in the Southwest. They were common breeding birds in the Pacific Northwest as late as the 1920s, but then they disappeared. The Black…

Weighing about as much as four paperclips, Bushtits are smaller than many hummingbirds. And they take full advantage of their diminutive size. While larger insect-eaters forage on the upper surfaces of leaves, Bushtits hang beneath them, plucking all the tiny insects and spiders hiding out…

The glorious song of the male Sage Thrasher rings out every spring from tracts of sagebrush throughout the West. Sagebrush was once widespread in the Great Basin region, and so were the thrashers. But huge areas of sagebrush were turned into alfalfa and potato farms, and the songs of the…

After breeding on Arctic cliffs and tundra hillsides in summer, Rough-legged Hawks winter throughout the Northern Hemisphere. Open country is their ideal territory, where the small rodents they depend on are usually so plentiful that the hawks have enough to eat. But the rodents are cyclic…

That’s not a distant dog barking. It’s a Black Skimmer in flight, at the Chincoteague National Wildlife Refuge in Virginia. This striking, black-and-white bird with a red bill and red feet has a most unusual way of feeding. It flies low along the surface of the water with its beak open…

California's Salton Sea is hot and smelly - and it's also a Mecca for thousands of wintering birds. This inland sea formed when the Colorado River breached floodgates in 1905, forming a lake 45 miles long. The lake has diminished in size and greatly increased in salt concentration, but a…