Chlidonias


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Chlidonias

 

(in Russian, bolotnye krachki), a genus of birds of the gull family. The name includes three varieties: the black tern (C. nigra), white-winged tern (C. leucoptera),and whiskered tern (C. hybrida). Body length is 25–28 cm. Plumage is bluish black with white; the black tern has a white rump, the white-winged has white upper covert feathers, rudder feathers, and undertail, and the whiskered has white cheeks and throat. Widely distributed (excluding the north) in Europe, Asia, and North America, as well as in Africa and Australia, Chlidonias is a migratory bird. It nests in colonies in swampy meadows, swamps, and the shores of reservoirs overgrown with thick grassy vegetation. There are two to three eggs per laying; both parents sit on the eggs (18 days).

REFERENCE

Ptitsy Sovetskogo Soiuza, vol. 3. Edited by G. P. Dement’ev and N. A. Gladkhov. Moscow, 1951.
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References in periodicals archive ?
Chlidonias leucopterus###White-winged black tern###Laridae###Charadriiformes###+###PM
Low occurrence of white- winged black tern Chlidonias leucopterus was recorded in the present study while flocks numbering over 1,000 were observed passing through the lake in April 1991 (Newton and Symens, 1994).
En contraste, hubo 12 especies raras de las que solo se observaron diez individuos, de estas el bobo enmascarado Sula dactylatra, la cerceta canela Ana cyanoptera, el charran negro Chlidonias niger y el halcon peregrino F.
Se realizaron 25 563 registros de 69, entre las que se reporta por primera vez en la region a Chlidonias niger y Phalaropus tricolor.
A total 25 563 records of 69 species were done, among them the first report of Chlidonias niger and Phalaropus tricolor for the region.
Se dan a conocer dos nuevos registros para la bahia de La Paz: Phalaropus tricolor y Chlidonias niger.