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===Courtship=== | ===Courtship=== | ||
| − | Maybe the strangest display in this family. Males display at a lek, standing upright with their bald heads gleaming and uttering their strange, cow-like sound. A dominant male sits on a key perch, together with his allies. Other males also associate, trying to get better places in the lek. The lek is visited by groups of females. Their visit leads often to chaos with agression between the females, males mimicring females to get better places in the | + | Maybe the strangest display in this family. Males display at a lek, standing upright with their bald heads gleaming and uttering their strange, cow-like sound. A dominant male sits on a key perch, together with his allies. Other males also associate, trying to get better places in the lek. The lek is visited by groups of females. Their visit leads often to chaos with agression between the females, males mimicring females to get better places in the leks and agression between males. <sup>[[#References|2]]</sup> |
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===Vocalisation=== | ===Vocalisation=== | ||
A cow-like mooing by the males. Females utter a rasping "waaaaaaa" as an alarm. | A cow-like mooing by the males. Females utter a rasping "waaaaaaa" as an alarm. | ||
Revision as of 15:37, 4 February 2009
Alternative name: Calfbird
- Perissocephalus tricolor
Identification
About 35 cm = 13-14 inches. Unmistakable: Black tail, olive-brown wings, mostly rufous in rest of plumage, blue-gray in bare parts of head with dark, large bill. Sexes alike.
Distribution
Venezuela, extreme E Colombia, the Guianas, and N Brazil1.
Taxonomy
This is a monotypic species.
Habitat
Humid forest on non-swampy ground. Usually below 600m but p to 1400m in Venezuela.
Behaviour
Feeds mainly on fruits but takes also large insects.
Breeding season November to March in Suriname, July to October in French Guiana. The nest is a light platform with twigs, usually 3 to 6 m high in a understorey tree. Lays one egg.
Resident species.
Courtship
Maybe the strangest display in this family. Males display at a lek, standing upright with their bald heads gleaming and uttering their strange, cow-like sound. A dominant male sits on a key perch, together with his allies. Other males also associate, trying to get better places in the lek. The lek is visited by groups of females. Their visit leads often to chaos with agression between the females, males mimicring females to get better places in the leks and agression between males. 2
Vocalisation
A cow-like mooing by the males. Females utter a rasping "waaaaaaa" as an alarm.
References
- Restall et al. 2006. Birds of Northern South America. Yale University Press. ISBN 9780300124156
- Del Hoyo, J, A Elliot, and D Christie, eds. 2004. Handbook of the Birds of the World. Volume 9: Cotingas to Pipits and Wagtails. Barcelona: Lynx Edicions. ISBN 978-8487334696
