Arctic Warbler Complex
Phylloscopus borealis
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.
3 branches of this group, most-observed first · about 3 known species
Arctic Warbler
speciesPhylloscopus borealis
Kamchatka Leaf Warbler
speciesPhylloscopus examinandus
Japanese Leaf Warbler
speciesPhylloscopus xanthodryas
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Phylloscopus borealis in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 1493704.