Biacuckoo
Biacuckoo | ||||||||||||
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Systematics | ||||||||||||
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Scientific name | ||||||||||||
Centropus chalybeus | ||||||||||||
( Salvadori , 1875) |
The bacco cuckoo ( Centropus chalybeus ) is a little researched bird species from the genus of the spur cuckoo ( Centropus ). He is on the islands of Biak and Supiori in eastern Indonesia's endemic .
features
The Biakkuckuck reaches a size of 44 to 46 cm. The wing length is 189 to 220 mm, the tail length 260 to 315 mm, the beak length 40 to 50 mm, the barrel length 47 to 57 mm and the length of the rear toe claw 15.0 to 16.2 mm. The sexes look the same. The plumage is black. The top has a dull purple sheen. The wings, long tail, beak, legs and feet are black. The underside is black and dark brown on the belly. The iris is yellow. The bacco cuckoo is smaller than the black cuckoo ( Centropus menbeki ) and squat than the amber cuckoo ( Centropus bernsteini ).
Vocalizations
The call consists of loud, muffled tones, a series of ascending hoot tones that are sometimes accelerated a little. The tones drop or move up and down in waves. A rough, croaking and repetitive bup can also be heard.
distribution and habitat
The Biakkuckuck inhabits primary lowland rainforests and dense secondary forests on the islands of Biak and Supiori.
Way of life
Little is known about the way of life, as it can be heard more often than seen. It moves on the ground, on climbing plants or on trees. He looks for his food hopping on the ground. He is a clumsy flier and only makes short flights.
status
The IUCN classifies the baccalaureate as a kind of warning list ("near threatened"). Due to habitat destruction, the population, which is estimated at 10,000 to 20,000 adult birds, is declining. Hunting poses a further threat. Recent observations suggest that the species is likely to be relatively common in secondary forests and is probably more widespread on Supiori than on Biak.
swell
literature
- Payne, RB (2005): The Cuckoos. Bird Families of the World. Volume 15. Oxford University Press. ISBN 0-19-850213-3
- Del Hoyo, J., Elliot, A. & Sargatal, J. (Editors) (1997): Handbook of the Birds of the World. Volume 4: Sandgrouse to Cuckoos. Lynx Edicions. ISBN 84-87334-22-9
Web links
- Centropus chalybeus in the endangered Red List species the IUCN 2010. Posted by: BirdLife International, 2008. Accessed January 23, 2011th