A century of screen history shows how heroic conservationists became tweed-clad caricatures, and when Hollywood finally ...

Found in tropical seas around the world, this long-winged seabird is only a very rare visitor to North America. Most records are from Florida, especially around the islands of the Dry Tortugas, but ...

Often shown in documentaries about the Galapagos, where pairs bow and shuffle and show off their blue feet, the Blue-footed Booby also nests as far north as western Mexico. In some years, small ...

A big, pale, ghostly gull of the far north. The only large gull common in the high Arctic, although a couple of small gulls are successful there as well. At various times the Glaucous Gull may fill ...

Seen soaring at a distance over rugged country in the southwest, the Zone-tailed Hawk looks remarkably like a Turkey Vulture. It may be overlooked even by birders who are searching for it. This close ...

The Broad-winged Hawk is a small hawk, common in eastern woodlands in summer. Staying around the edges of forest, the Broad-wing Hawk is often not very noticeable during the breeding season, but form ...

This regal bird is the largest of our soaring Buteo hawks, a fitting raptor for the wide skies and windswept plains of the west. It soars with its broad wings held in a shallow V, and swoops down to ...

Our most beautiful bird of prey, striking in its shape, its pattern, and its extraordinarily graceful flight. Hanging motionless in the air, swooping and gliding, rolling upside down and then zooming ...

This trim, elegant falcon once nested in desert grassland of the southwest, but the Aplomado Falcon has been very rare north of the Mexican border since the 1920s or before. Recently a few have ...

The Western Screech-Owl is inconspicuous but locally very common. In the varied terrain of the west, its haunts range from coastal forests in southeastern Alaska to cactus groves in the Arizona desert ...

One of our tiniest birds, the Golden-crowned Kinglet is remarkable in its ability to survive in cold climates. Nesting in northern forest, wintering throughout much of the continent, it is usually in ...

A strikingly patterned warbler of leafy second growth and swamp edges. Once common in the northeast, the Golden-winged Warbler has been declining recently in southern parts of its breeding range. As ...