Caspian Tern

(redirected from Hydroprogne)

Caspian Tern

 

(Hydroprogne caspia), a bird of the family Laridae of the order Charadriiformes. The body is about 50 cm long and weighs about 650 g. The bird is gray above and white below, with a black head cap and black legs. The Caspian tern is distributed sporadically in Europe (except the north), Western and Southeast Asia, Australia, New Zealand, Africa, and North America. In the USSR it is found along the Baltic, Black, Azov, Caspian, and Aral Seas, as well as along lakes of Kazakhstan, Transbaikalia, and the southern Primor’e. The Caspian tern is a migratory bird. It nests in colonies on shoals and islands. A clutch contains two or three eggs, which are incubated by both parents for 22 or 23 days. The Caspian tern feeds on small fish, invertebrates, and, sometimes, the young of other birds.

References in periodicals archive ?
Of the 40 species, there were nine species of shorebirds, seven dabbling ducks, five diving ducks, four waders, three gulls, and two "geese" (one was light geese, which includes Snow and Ross' Geese), in addition to Ruddy Duck (Oxyura jamaicensis), American Coot (Fulica americana), White Pelican (Pelecanus erythrorhynchus), Double-crested Cormorant (Phalacrocorax auritus), Tundra Swan (Cygnus columbianus), Sandhill Crane, Caspian Tern (Hydroprogne caspia), and two species that could not be identified (one dabbling duck and one sandpiper).
The island annually hosts more than 10,000 breeding pairs of migratory water fowl, primarily American white pelicans, double-crested cormorants (Phalacrocorax auritus), great blue herons (Ardea herodias), California gulls (Larus californicus), and Caspian terns (Hydroprogne caspia; Hall, 1926; Marshall and Giles, 1953).
De acuerdo a estas caracteristicas del habitat, las especies de aves que visitan la isla realizaban distintas actividades en estos sitios: se observaron aves reposando en litoral arenoso (Pelecanus erythrorhynchos, Pelecanus occidentalis, Phalacrocorax auritus, Sula leucogaster, Ardea herodias, Egretta thula, Haematopus palliatus, Larus delawarensis, Larus heermanni, Larus livens, Leucophaeus atricilla, Hydroprogne caspia, Thalasseus maximus).
Hydroprogne caspia (Caspian Tern)###-###5 (15.05.2007)###1 (15.08.2009)###3###M###VU###A.2