Bitterns


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Bitterns

 

two genera of birds of the family of herons and order of Ciconiiformes, the greater bittern (Botaurus) and lesser bittern(loxbrychus). They stay hidden in the under-growth along banks of reservoirs and in dangerous situations conceal themselves by stretching vertically among the plants. They nest on the ground, although the lesser bittern also nests in shrubs and trees, and in distinction from other herons they nest alone. There are four to nine eggs in each laying, and brooding lasts 28 to 30 days. They feed on fish, amphibians, and invertebrates. There are bitterns on every continent. Of the four species of Botaurus, the greater bittern(B. stellaris), which is also called water bull because of the loud spring cry of the male, is found in the USSR. Birds of this species are widely distributed south of the 58th to 64th parallel. Of the eight species of loxbrychus, three exist in the USSR—the lesser bittern (7. minutus), found east of the Altai, and two species in the Far East.

REFERENCE

Ptitsy Sovetskogo Soiuza, vol. 2. Edited by G. P. Dement’ev and N. A. Gladkov. Moscow, 1951.
References in periodicals archive ?
We are trying to manage the reserve habitat to encourage bitterns to stay on and breed," said a society spokesman.
A bittern is just one of the birds the team will get to know
Least Bitterns vocalize infrequently (Bogner and Baldassarre 2002b), and it is debatable whether call-broadcast surveys are effective at increasing detection probabilities of these birds.
It is hoped the plans could see the return of iconic species such as the crane, "booming" bitterns and the white-faced darter dragonfly to parts of Cheshire.
The bittern, a rare member of the heron family which is famous for its booming call, is believed to have been forced to seek refuge from the cold snap in Co Wexford.
HOT SHOTS: Oscar's bittern, Alex's seal and Fabienne's lovely Making Life Better entry
The secretive bittern, renowned for its booming call, has been heard only 14 times this spring.
The habitat creation here is, in part, a product of huge concern in the mid 1990s that the Bittern - once described to me as a 'toasted heron' - would be lost from Britain's landscape.
We conducted point count surveys in 82 wetlands in three provinces (47 in Ontario, 27 in Qurbec, 8 in Manitoba) where Least Bitterns breed in Canada (Fig.
Studies revealed 82 male bitterns calling or "booming" this spring, with the Suffolk coast holding the highest number of birds followed by the Norfolk Broads and the Fens.
Also wintering at the marsh are the reclusive bitterns, once one of Britain's most threatened birds.