Bolles laurel pigeon

from Wikipedia, the free encyclopedia
Bolles laurel pigeon
Laurel pigeon3 3.jpg

Bolles Laurel Pigeon ( Columba bollii )

Systematics
Class : Birds (aves)
Order : Pigeon birds (Columbiformes)
Family : Pigeons (Columbidae)
Genre : Field pigeons ( Columba )
Type : Bolles laurel pigeon
Scientific name
Columba bollii
Godman , 1872
Bolles laurel pigeon on La Palma

Bolles laurel pigeon ( Columba bollii ), also called canary pigeon or incorrectly Bolls forest pigeon or Bolls pigeon , is a species of pigeon that occurs on La Palma , Tenerife , Gomera and El Hierro . The name honors the German doctor and naturalist Carl August Bolle , who was the first to distinguish it from the laurel pigeon . The species is considered threatened. However, the population has recovered somewhat in recent years. Similar to the silver neck pigeon , Bolles laurel pigeon also descends from the wood pigeon . It has long been classified as a subspecies of the silver-necked pigeon. It resembles the wood pigeon in its way of life.

Appearance

Bolles laurel pigeon grows to 35 to 37 cm long and is predominantly dark gray. This differs from the laurel pigeon, which is rather dark brown. The dark bands on the tail are another distinguishing mark from the laurel pigeon. It differs from the silver neck dove in the color of the neck spots. While these are silvery gray in the silver neck dove, they are shiny copper brown in the Bolles laurel dove.

Distribution, habitat and population development

Bolles laurel pigeon lives in laurel forests , which are higher than those in which the laurel pigeon inhabits. A little more than 2,000 individuals live on Tenerife. The population density is particularly high in Anaga and Teno. There are also 3,000 individuals on La Palma. They can be seen mainly in the northeast of the islands. About 1,000 individuals live in the Garajonay National Park on the island of La Gomera . Bolles laurel pigeon probably also inhabited Gran Canaria in historical times . It was once a very common species, but its population declined significantly due to the decline in the laurel forests. Since the rate of clearing of this type of forest has slowed and many laurel forests are under protection, the population of this species is gradually starting to recover. In 1980 the population was estimated at 1,160 to 1,315 individuals. In 2001 it was 6,000 individuals and is now assumed to be 5,000 to 20,000 individuals.

behavior

It breeds in trees and only lays one white egg. The nest is usually seven meters above the ground. The breeding season falls from January to the end of September. The incubation period is 19 days.

protection

Bolles laurel pigeon is protected according to Appendix I of the EU bird protection directive .

supporting documents

Individual evidence

  1. ↑ Columba bollii in the endangered Red List species the IUCN 2011. Posted by: BirdLife International, 2011. Accessed November 14, 2011th
  2. ↑ Rösler, p. 89

literature

  • Gerhard Rösler: The wild pigeons of the earth - free living, keeping and breeding. M. & H. Schaper Verlag, Alfeld-Hannover 1996, ISBN 3-7944-0184-0 .

Web links