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

Often the most common and widespread gull in North America, especially inland, and numbers are probably still increasing. Sociable at all seasons; concentrations at nesting colonies or at winter ...

A common seabird off the Atlantic Coast, seldom coming close to shore except during storms. The Great Shearwater often forages in flocks. Commonly feeds around fishing boats, fighting over scraps and ...

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 ...

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 ...

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 ...