black sea red data book - Department of Biology

Tado ma ferruginea (Pallas, 1764)
Synonyms: Casarca ferruginea, Anas ferruginea Ruddy.
Common names: Bulg: Cherven angach; Engl: Shellduck; Rom: Califar rosu; Russ:
Ogaf; Turk: Angit; Ukr: Ogar'.
Taxonomic description. About 90-100 pairs out of a total population of 280-350
birds breed in Ukraine.
IUCN Status
World level:
Black Sea Regional level:
Subregion level: VU
Order ANSERIFORMES
Family ANATIDAE
Distribution, Habitat type, Critical habitats, Limiting factors. Breeding habitats
include rocky precipices along the banks of waterbodies, but alsoin abandoned
buildings. Major limiting factors are the reduction of the breeding range due to
recreational and economic activities, disturbance and killing by people, increased
predation (crows, raccoons, foxes, domestic dogs).
Biology. A resident of the whole Black Sea basin. In the northern sub-regions it is a
breeding, summer and irregular winter species. Breeding starts in late March -
beginning of April. Nests are located in rocky niches and holes (those dug by foxes
are occupied as well) often fairly high, or in abandoned buildings. The clutch consists
of 8-12 eggs and is incubated by the female, while the male protects the nesting
territory. Brooding duties are shared. Non-breeders associate in flocks of irregular
size and stay in the breeding areas. In April-June these flocks are joined by
unsuccessful breeding birds, in August and later the families with juveniles complete
these associations. In late October the northern populations move southwards. In
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