|Caspian Tern Hydroprogne caspia
(aka Sterna caspia)
|Cayo Coco, Cuba
The Caspian Tern is fairly cosmopolitan though sparse and breeds on all continents except South America and Antarctica. European and North American populations migrate south during the northern winter and some North American birds winter in the West Indies and northern South America. It is found on the coast and at inland lakes. Only rarely does it venture far out to sea.
|It is the largest tern at about the size of a Herring Gull and has a large, stout red-orange bill. In non-breeding plumage (shown here) the forecrown has black steaks on the white, never pure white. In breeding plumage the crown is all black. In flight the primaries from below are blacker than in Royal Tern S. maxima and the tail shows only a slight fork.|