
Photo: (c) Forest Botial-Jarvis, some rights reserved (CC BY) · CC BY 4.0 (May be cropped or resized)
Phylloscopus borealis
Habitat
Taiga and forest-tundra
Range
Northern taiga; winters only in Southeast Asia
Size
12–13cm
Weight
7.5–15g, averaging about 10g
The Arctic warbler is about 12–13 centimetres long and weighs 7.5–15 grams, averaging about 10 grams. It is one of the larger leaf warblers, similar in size to the wood warbler. In appearance it resembles the greenish warbler, whose range overlaps with its own. (German Wikipedia, general species account)
It looks like a typical leaf warbler, olive-brown above and whitish below, with some small streaks on the breast, and it has a comparatively strong bill. The song is a fast trill. A northern songbird of the taiga and forest-tundra, it is a pronounced migrant whose winter quarters lie exclusively in Southeast Asia. (German Wikipedia, general species account)