Red-nosed green pigeon

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Red-nosed green pigeon
Red-nosed green pigeon

Red-nosed green pigeon

Systematics
Class : Birds (aves)
Order : Pigeon birds (Columbiformes)
Family : Pigeons (Columbidae)
Genre : Green doves ( Treron )
Type : Red-nosed green pigeon
Scientific name
Treron calvus
( Temminck , 1808)
Two red-nosed green pigeons

The red-nosed green pigeon or naked-faced green pigeon ( Treron calvus ) is a species of green pigeon from the family of pigeon birds . It occurs in numerous subspecies in sub-Saharan Africa . Unlike most of the wild pigeons, it is a tree-dwelling species that very rarely comes to the ground.

Appearance

The nominate form of the red-nosed green pigeon reaches a body length of 30 centimeters. However, some of the total of seventeen subspecies remain significantly smaller and occasionally only reach a length of 25 centimeters. The sexual dimorphism is only very slight. The females usually have slightly more dull plumage colors and the wax skin is smaller than that of the male.

Red-nosed green pigeons have predominantly olive-colored plumage. The head, chest and stomach show yellow areas of color. The coat and the back neck are gray. The striking red beak, which brightens towards the tip, is characteristic of red-nosed green pigeons. The feet are also red. The subspecies differ from the nominate form by the plumage and foot colors. The subspecies T. c, which is widespread in Sierra Leone as far as Nigeria . sharpei overall somewhat greyish than the nominate form. The subspecies T. c. Found in eastern Kenya and northeastern Tanzania . brevicera has a rather yellowish head and a yellowish underside of the body.

Distribution, habitat and behavior

Red-nosed green pigeons are widespread in sub-Saharan Africa. They are only missing in the southwest of the African continent. Their habitat are different forest forms. They also colonize forest edges and mangrove swamps . Red-nosed green doves are very shy birds that occur in small flocks in leafy forests. They show climbing skills that some ornithologists compare with the climbing skills of parrots. Among other things, they are able to hang upside down on the branches in order to get to fruit. Their food spectrum depends on where they are. However, wild figs represent a large proportion. They also eat mangrove seeds, grains, mulberries and millet .

The nest of the red-nosed green pigeon comprises one or two eggs. Basically, the clutches in the south of the distribution area tend to have one egg, while the northern subspecies have clutches with two eggs. The incubation period is 13 to 14 days. The young birds leave the nest between twelve and thirteen days.

Individual evidence

  1. ↑ a b Gerhard Rösler: The wild pigeons of the earth - free life, keeping and breeding , Verlag M. & H. Schaper, Alfeld-Hannover 1996, p. 258
  2. ↑ David Burnie (Ed.): Vögel , Dorling Kindersley, Munich 2008, p. 250

literature

  • Gerhard Rösler: The wild pigeons of the earth - free life, keeping and breeding , Verlag M. & H. Schaper, Alfeld-Hannover 1996 ISBN 3-7944-0184-0 .
  • David Burnie (Ed.): Birds , Dorling Kindersley, Munich 2008 ISBN 978-3-8310-1272-5 .

Web links

Commons : Treron calvus  - collection of images, videos and audio files