«

»

Jun 08 2011

Print this Post

Dusky Warbler (Phylloscopus fuscatus)

Dusky Warbler

[order] PASSERIFORMES | [family] Phylloscopidae | [latin] Phylloscopus fuscatus | [UK] Dusky Warbler | [FR] Pouillot fuligineux | [DE] Dunkel-Laubsanger | [ES] Mosquitero sombrio | [NL] Bruine Boszanger

Subspecies

Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range
Phylloscopus fuscatus EU ne Asia, wc China OR
Phylloscopus fuscatus fuscatus
Phylloscopus fuscatus robustus

Physical charateristics

Small, fairly slight but energetic Phylloscopus, with spiky bill, rather short, rounded wings, and rather slender legs.
Plumage essentially brown above and buff and grey-white below, with rusty-white supercilium. Adult lacks any fully green or yellow tones.
Sexes similar, no seasonal variation.

Listen to the sound of Dusky Warbler

[audio:http://www.aviflevoland.nl/sounddb/D/Dusky Warbler.mp3]

Copyright remark: Most sounds derived from xeno-canto

wingspan min.: 17 cm wingspan max.: 18 cm
size min.: 10 cm size max.: 11 cm
incubation min.: 11 days incubation max.: 13 days
fledging min.: 0 days fledging max.: 13 days
broods: 1   eggs min.: 4  
      eggs max.: 6  

Range

Eurasia : Northeast Asia, Westcentral China

Habitat

Breeds in continental east Palearctic from boreal to warm temperate zone, from lowland plains and marshy river valleys in north to uplands and mountains further south, at altitudes of 500-3900 m. Mainly found in shrub layers of open forest, in regrowth after fires, in willow beds along river and stream banks, and in upland thickets of dwarf birch.

Reproduction

The nest is built low in a bush, and 5-6 eggs are laid.

Feeding habits

Mainly invertebrates, forages mostly by picking from ground.

Conservation

This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
Breeds from upper Ob and western Altai in Siberia east to Anadyr region and Sakhalin island, south to eastern Himalayas and central and north-east China. Accidental recordings in Britain, Channel Islands, Ireland, France, Belgium, Netherlands, Germany, Denmark, Norway, Sweden (possibly annual), Finland (annual), Estonia, Latvia, Lithuania, Poland, Austria, Switzerland, Spain, Portugal, Italy, Malta, Greece, Russia (Leningrad region), Cyprus, Israel, Egypt, Morocco, Madeira.
Dusky Warbler status Least Concern

Migration

Altitudinal and long-distance migrant. Northern populations winter from northern India and Nepal, east to southern China, Taiwan, Indochina, and Thailand.
Autumn vagrancy to western Europe, resulting from reverse migration or westward displacement in anti-cyclonic conditions, is widespread in small numbers. In Britain and Ireland, 47 records 1958-85; 45 between late September and November (one 18 August); bird recorded Isle of Man 14 May 1970 (recovered in Limerick, south-west Ireland, 5 December 1970), had probably wintered in western Europe. Record influx 1987: e.g. 17 Britain and Ireland, 10 Denmark, 6 Netherlands.

Distribution map

Dusky Warbler distribution range map

About the author

admin

Permanent link to this article: http://www.planetofbirds.com/passeriformes-phylloscopidae-dusky-warbler-phylloscopus-fuscatus

Leave a Reply