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

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 ...

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 ...

The strident laughing calls of the well-named Laughing Gull are among the most characteristic sounds around tidewater along the Atlantic and Gulf coasts, especially in summer. It seems to be mostly a ...

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 ...

Common along tropical and subtropical shores, the Royal Tern is a characteristic sight along the Gulf Coast and southern Atlantic Coast, less numerous in California. Aside from a few interior ...

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 ...

In the arid southwest, the Common Black Hawk is limited to the edges of flowing streams. A bulky bird, with very broad wings, short tail, and long legs, it usually hunts low along streams, even wading ...

Abundant in the southeast and scarce in the southwest. The Black Vulture is a broad-winged scavenger, in low flight, it proceeds with several quick flaps followed by a flat-winged glide; when rising ...

Widespread and common in the tropics, the Gray Hawk enters The United States mainly in southeastern Arizona, where it is limited to cottonwood and mesquite forests along a few streams. It sometimes ...