Yellow-knobbed curassow
Yellow-knobbed curassow | |
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Male at the Emirates Park Zoo | |
Female at the Sylvan Heights Bird Park | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Galliformes |
Family: | Cracidae |
Genus: | Crax |
Species: | C. daubentoni
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Binomial name | |
Crax daubentoni G.R. Gray, 1867
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The yellow-knobbed curassow (Crax daubentoni) is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in Colombia and Venezuela.[2]
Taxonomy and systematics
The yellow-knobbed curassow was formerly classified as a subspecies of
Description
The yellow-knobbed curassow is 84 to 92.5 cm (2.8 to 3.0 ft) long. Males usually weigh between 2,925 and 3,200 g (6.4 and 7.1 lb) but one weighed only 1,625 g (3.6 lb). A female weighed 2,325 g (5.1 lb). The male is the only curassow with a knobbed yellow
Distribution and habitat
The yellow-knobbed curassow is found in northern Venezuela as far east as Sucre and Monagas states and in immediately adjacent northeastern Colombia. It primarily inhabits gallery forest and tall scrub in the llanos. It also occurs in valleys and ravines in the nearby foothills. In elevation it ranges between 500 and 1,500 m (1,600 and 4,900 ft) in Colombia and 100 and 800 m (330 and 2,600 ft) in Venezuela.[3]
Behavior
Feeding
The yellow-knobbed curassow forages in small family groups, or in combined ones of up to 15 birds in the dry season. Its primary foods are fruits and seeds with very small amounts of leaves, other plant parts, and insects. It feeds at all levels from the ground to the treetops.[3]
Breeding
The yellow-knobbed curassow lays eggs during May and June, the early part of the rainy season. It appears to be
Vocalization
Male yellow-knobbed curassows sing a "bomb-dropping" descending whistle, sometimes combined with a wing-clapping display or booming. The former is "4–10 rapid cracks of wings above the bird’s back, 'wapp!, wapp!, wapp!-wapp!-wapp!'". The booming is described as "uuumh...uhh".[3]
Status
The
Gallery
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Male at Hamerton Zoo Park, England
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Female at Philadelphia Zoo, USA
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Female
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Female
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Female
References
- ^ a b BirdLife International (2019). "Yellow-knobbed Curassow Crax daubentoni". IUCN Red List of Threatened Species. 2019. Retrieved 1 October 2021.
- ^ Gill, F.; Donsker, D.; Rasmussen, P. (July 2021). "IOC World Bird List (v 11.2)". Retrieved July 14, 2021.
- ^ a b c d e f del Hoyo, J. and G. M. Kirwan (2020). Yellow-knobbed Curassow (Crax daubentoni), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.yekcur1.01 retrieved October 1, 2021