A roosting owl often leaves visual clues to its whereabouts — a scattering of furry, oval objects below its perch — in the form of pellets. Because owls such as this Great Horned Owl often swallow their prey whole, their digestive system has to deal with bones, fur, and feathers. The owl’s…

Look closely and you’ll see: the European Robin’s breast isn’t red. It’s actually a distinctly orange color. So why “Redbreast” and not, you know, “Orange-breast”? It may be because the word “orange” just wasn’t an option when the bird was named. Oranges — the fruit — first arrived in…

The Bald Eagle stands proud as our national bird, spreads its wings on our national emblem, and serves as mascot of countless sports teams. So prominent is this iconic bird in our culture that we sometimes overlook a second, equally majestic eagle: the Golden Eagle. While Bald Eagles are…

Do Snowy Owls hunt during the day or at night? As they are normally arctic birds, Snowy Owls are adapted to hunt both during the long hours of summer and the near-total night of winter. During the winter, these birds can sometimes be found as far south as the northern United States, where…

During much of his life, Edward Lear, the poet who wrote The Owl and the Pussy-cat, was known for his paintings. Lear’s first major project was a book of paintings of parrots, inspired in part by the friendship and mentoring of John James Audubon. He spent years traveling the globe…

Where have the birds of summer gone? The Swainson's Thrush is wintering in Central or South America, maybe as far south as Bolivia. Warbling Vireos are now spread through much of Central America, while Black-headed Grosbeaks have migrated to Mexico. This Orange-crowned Warbler also makes…

Long-distance migration can be hard on a bird’s body. For example, this Swainson’s Thrush might migrate between northern Canada and South America, twice a year. In the weeks before such a long journey and during key stopovers en route, the thrush eats like crazy to put on fat. But during…

The Northern Goshawk is one of the most fearsome and admired of all birds of prey — and the largest hawk of the northern forest. Since at least medieval times, falconers have regarded the goshawk as a bird of great distinction. Attila the Hun even wore its image on his helmet. The boreal…

The males and females of many bird species, like these Blue Jays, look identical. And crows, which at least to our eyes, are all the same color and size. But even if we can’t tell male from female, the birds can. Scientists believe crows may be able to tell each other apart by slight…

The Pileated Woodpecker makes loud, hard whacks, as it leans back and then slams its bill into the side of a living tree. Sounds painful, if not downright disabling! How does the woodpecker's brain withstand it? All woodpeckers have an enlarged brain case, so the brain sits above the level…