Blue-bellied High Roller [1] ( Coracias cyanogaster ) is a bird from the family of blue-eyed rodents .
| Blue-bellied High Roller |
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| Scientific classification |
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| No rank : | Bilateral symmetric |
| View: | Blue-bellied High Roller |
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| International Scientific Name |
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Coracias cyanogaster Cuvier , 1816 |
| Security status |
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Least concernIUCN 3.1 Least Concern : 22682908 |
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Content
A blue-bellied high-speed roller about the size of a daw. The body length is from 28 to 30 cm, including tail feathers 6 cm long, the length of the wings is from 16 to 19 cm. The weight of the bird is from 110 to 178 g. The males are slightly larger than the females. The back is dark green, a relatively large cream-colored head, nape, chest, and most of the plumage are predominantly ultramarine. In adult birds, there is a strip of 6 cm in length on the blue-colored fork of the fork. The mandible is slightly bent down at the end. Sexual dimorphism is not pronounced. The plumage color is more intense in adult birds than in young birds.
With a speed of 3 to 5 sounds per second, the bird makes a dry, compressed “ha-ha-ha-ha” sound for about 5 seconds. The appeal is similar to that of the African wide , which is a bit shorter.
The range extends from West to Central Africa. Birds can be found in small groups, from 2 to 6 birds on the edges of the forest in savannas, dominated by trees of the genus Isoberlinia and palm trees , near swamps and water bodies. There are also groups of up to 20 birds. They hold almost exclusively on the plain.
A blue-bellied high-rollers often sits in trees, sometimes also on poles and power transmission towers, from where they look out for their prey, often consisting of insects, such as short-winged orthoptera , lamellar , barbel , and winged termites and ants and arachnids, but also small vertebrates. animals. Sometimes the birds feed on the fruits of the oil palm . They have developed strong territorial behavior. Each bird approaching the nest is attacked. The nests are relatively high, located in hollows of trees at an altitude of about 10 m. In laying from 3 to 5 eggs, the incubation of which lasts an average of 18 days in the rainy season from April and July in Senegal and from February to September in the Cat d'Ivoire . Young birds become sexually mature at the age of about one year.
- ↑ Boehme RL , Flint V. Ye. The five-language dictionary of animal names. Birds. Latin, Russian, English, German, French / Under total. ed. Acad. V.E. Sokolova . - M .: Rus. lang, "RUSSO", 1994. - p. 181. - 2030 copies. - ISBN 5-200-00643-0 .
- Martin Moynihan: Social, Sexual, and Pseudosexual Behavior of the Blue-bellied Roller, Coracias cyanogaster: The Consequences of Crowding and Concentration . Smithsonian Contribution to Zoology Nr. 491, Washington DC 1990 (eng; PDF 16.34 MB)
- Fry, C. Hilary und Fry, Kathie: Kingfishers, Bee-Eaters & Rollers : Christopher Helm - A & C Black, London 1992, S. 300f, ISBN 0-7136-8028-8 . (eng.)
