Arctic Warbler
Photo: Arctic_Warbler_4683.jpg: Alnus derivative work: Osado · CC BY-SA 3.0

Leaf Warblers

Arctic Warbler

Phylloscopus borealis

LCLeast Concern
Family
Leaf Warblers (Phylloscopidae)
Order
Passeriformes

Overview

The Arctic warbler (Phylloscopus borealis) is a widespread leaf warbler in birch or mixed birch forest near water throughout its breeding range in Fennoscandia and the northern Palearctic. It has established a foothold in North America, breeding in Alaska. This warbler is strongly migratory; the entire population winters in southeast Asia. It therefore has one of the longest migrations of any Old World insectivorous bird.

Summary from Wikipedia, available under CC BY-SA 4.0.

Where to see it

Destination guides featuring this bird

Range and habitat

Breeds from northern Scandinavia eastward to Siberia (excluding the Kamchatka Peninsula) and western Alaska, southward to south-central Siberia, northern Mongolia, and northeastern China (northeastern Nei Mongol and Heilongjiang); winters from southeast Asia (Myanmar eastward to Vietnam), southeastern China (Fujian, northern Guangdong), and Taiwan southward to Philippines and Wallacea.

Range description: AviList Global Avian Checklist.

Sources and further reading

Last updated September 29, 2026.