Black-crowned Night-Herons feed primarily on fish, but they will consume everything from earthworms to clams to eggs of nesting birds and refuse at landfills! Because they are high on the food chain, found throughout much of the world, and nest in colonies, Black-crowned Night-Herons can…

The Swainson's Thrush, the Hermit Thrush, and this Veery are small, brown birds, but their songs clearly distinguish them. The Swainson's Thrush announces its presence in early spring with subtle, limpid "whit" or "wink" sounds. Many rate it among the finest singers. A Veery's phrases tend…

These Downy and Hairy Woodpeckers appear nearly identical, but the Hairy Woodpecker is larger than the Downy, with a distinctly longer bill. And it doesn't have the black spots on its outer tail feathers like the Downy. But even if you can’t observe these spunky birds, you can identify…

Is that big black bird a crow or a raven? How can you tell? Ravens (seen right here) often travel in pairs, while crows (left) are seen in larger groups. Also, study the tail as the bird flies overhead. A crow's tail is shaped like a fan, while the raven's tail appears wedge-shaped or…

By moving from the faster high air to slower low air, or vice versa, an albatross can propel itself forward. In a series of sinuous loops, the albatross surfs the wind, up and down, repeating the pattern over and over again as it moves thousands of miles across the ocean.

A Merlin — like this one — hunts boldly from a high perch. A Peregrine Falcon dives on a hapless pigeon, with an air speed approaching 200 miles per hour. The Gyrfalcon can fly down even the fastest waterfowl in a direct sprint. A Prairie Falcon blends in with its background. And the…

The Ring-necked Pheasant is likely the best-known bird in North America that isn’t native to the continent. Indigenous to Asia, Ring-necked Pheasants were introduced to Oregon in 1881. The birds thrived in rural landscapes for many years, but modern industrial farming practices have…

Just a couple dozen miles off the Northwest coast, immense dark birds with long, saber-shaped wings glide without effort above the waves. These graceful giants are Black-footed Albatrosses, flying by the thousands near the edge of the continental shelf. Black-footed Albatrosses do not…

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…

Great Horned Owls are found in more varied habitats than any other owl in North America. These owls often nest in trees, but may also nest on cliffs in arid areas far from trees. They nest early in the year, even in the dead of winter. The young hatch a month later, vocalizing inside the…