Unsorted Wild Birds

Arctic Warbler (Phylloscopus borealis)

The Arctic Warblers (Phylloscopus borealis) is a widespread leaf warbler.


The migratory Arctic Warbler occurs in Fennoscandia and northern Asia and has also been established in North America, where they breed in Alaska.

They occur in birch or mixed birch forests near water throughout its breeding range.

They migrate to southeast Asia for the winter, and have, therefore, the longest migration route of any Old World insectivorous bird.


This is a typical leaf warbler in appearance, greyish-green above and off-white below. Its single wing bar distinguishes it from most similar species except the Greenish Warbler, Phylloscopus trochiloides.

It is larger than that species and has a heavier, dagger-like bill, with a dark tip to the lower beak (mandible). Its song is a fast trill.

They occur as autumn vagrants in western Europe and is annual in Great Britain.

Nesting / Breeding

They nest on the ground in a low shrub.

Diet / Feeding

The Arctic Warbers mostly feed on insects.


Gordon Ramel

Gordon is an ecologist with two degrees from Exeter University. He's also a teacher, a poet and the owner of 1,152 books. Oh - and he wrote this website.

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