radarfert.blogg.se - Himalayan bluetail

While currently under review, this taxon is not current recognized as a species by BirdLife international. The Himalayan bluetail or Himalayan red-flanked bush-robin also called the Orange-flanked bush-robin (Tarsiger rufilatus) is a small passerine bird that was formerly classed as a member of the thrush family Turdidae, but is now more generally considered to be an Old World flycatcher of Muscicapidae.

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Westward expansion in Finland, where first recorded in 1949 and population since 2000 fluctuating around 340–500 pairs isolated breeding records also in Estonia in 1980, N Sweden in 1996 and N Norway in 2011 ( 1 By 2000 total European population (including European Russia) revised to 10,000–21,000 pairs. The Red-flanked Bluetail, Tarsiger cyanurus (Pall.), spreading into Finland.

In Russia W of Urals population in mid 1990s estimated at just 100–1000 pairs, despite W expansion in 1940s which led to colonization of Finland ( 2

Common to abundant autumn migrant at Beidaihe, in NE China, with no indication of decline over past century. common breeder in Kuriles and N Japan (Hokkaido), rarer farther S. Not globally threatened ( Least Concern). The Red-flanked Bluetail in Europe: range expansion and population trends. L Khanka) in second half Apr and spreading N & W during May, reaching extreme NW of breeding range in late May to early Jun. Vagrants recorded in W Europe, also in NW North America (mainly Alaska) in Europe excluding Finland and Russia there were 400 records up to 2013, mainly in autumn, showing an upward trend apparently linked to the westward range expansion in Finland ( 1 Spring return commences Apr, reaching S Siberia (e.g. Occasionally recorded as far N as NW Europe and Kazakhstan in midwinter.

Present in N Myanmar Oct–Apr (to mid May). In China, main autumn passage at Beidaihe (NE) late Sept to early Nov present in Shanghai area early Oct–late Apr, in Hong Kong mainly late Nov to mid Mar but highest numbers Jan–Feb (indicating midwinter influxes), in SE Yunnan Nov–Apr, and on Hainan Jan–Feb. In Japan a common passage migrant Oct–Dec. Autumn passage Korean Peninsula from early Sept to mid Nov (mainly Oct), with spring return mid Mar to mid May (mainly Apr). Finnish and Russian populations evidently make long movement E or SE to avoid Himalayas and associated ranges, before heading S N summer quarters deserted by mid Sept, some lingering in S Siberia into early Oct, crossing Mongolia and China during Oct. Migratory in most of range in C & S Japan some merely undertake altitudinal movements to lowlands. Red-flanked Bluetail (Red-flanked Bush-Robin) Species names in all available languages Species names in all available languages Language