Darkwavers
| Darkwavers | ||||||||||||
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Dark-leaf warbler ( Phylloscopus fuscatus ) |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Phylloscopus fuscatus | ||||||||||||
| ( Blyth , 1842) |
The dark Laubsänger ( phylloscopus fuscatus ) is a monotypic , breeding in East Asia species in the genus of the warbler , a genus smaller and slimmer songbirds the family of Laubsänger-like (Phylloscopidae).
The species is rare in Europe, but recently in the Baltic and North Sea areas it is an annual errant . In the Netherlands, among others, there are 37 recognized records of this species for the period from 1978 to 2003. The species was observed several times in 1996 and 1997 on Heligoland.
description
The body length of the dark warbler is 14 centimeters. On the upper side of the body, the plumage is uniformly dark gray-brown. The beak is short, straight and pointed. The legs are dark. Characteristic for the dark-leaf warbler is the facial drawing. A dark eye stripe runs across the eye. There is a light stripe above that . Dark-leaf warblers also have a thin, white eye ring. The underside of the body is dirty white, although the chest region may be a little darker in color. The flanks and the under tail coverts are cream-colored. Unlike most of the deciduous warbler, the tail is slightly rounded. There is no gender dimorphism . The call of the dark forest singer is a tough "Tschik".
Distribution area
The breeding area of the dark warbler is East Asia. There it breeds in moorland and marsh areas of the taiga and is widespread and frequent. He is a distinct migratory bird. The wintering areas are in southeast Asia. However, he is a regular stray visitor to North America . It can be observed on islands of western Alaska, in autumn also in southern parts of Alaska and in California. Two observations have also been documented for Baja California . In Europe, too, he has been observed several times as a stray visitor.
The dark-bellied warbler builds its nest at a low height in shrubbery. The average clutch consists of five to six eggs. Young birds are largely similar to the adult birds. They can be recognized by the fact that their upper body plumage shimmers a little olive. It feeds mainly on small insects, but also eats small berries.
swell
Individual evidence
- ↑ Bauer et al., P. 183
- ↑ Alderfer, p. 469
- ↑ Alderfer, p. 469
- ^ Robert Pfeifer, Jutta Stadler, Roland Brandl: Birds from the Far East in Central Europe: a test of the reverse migration hypothesis. Journal of Ornithology Volume 148 (Issue 3), 2007, pp. 379-385, doi : 10.1007 / s10336-007-0140-6
literature
- Jonathan Alderfer (Ed.): Complete Birds of North America , National Geographic, Washington DC 2006, ISBN 0-7922-4175-4
- Hans-Günther Bauer, Einhard Bezzel and Wolfgang Fiedler (eds.): The compendium of birds in Central Europe: Everything about biology, endangerment and protection. Volume 2: Passeriformes - passerine birds. Aula-Verlag Wiebelsheim, Wiesbaden 2005, ISBN 3-89104-648-0 .
Web link
- Phylloscopus fuscatus inthe IUCN 2013 Red List of Threatened Species . Listed by: BirdLife International, 2012. Retrieved January 15, 2014.
- Feathers of the Dark Scroller