Arctic warbler

== English == === Noun === Arctic warbler (plural Arctic warblers) Phylloscopus borealis, a widespread leaf warbler in birch or mixed birch forest near water throughout its breeding range in Fennoscandia and northern Asia ==== Translations ==== === References === Arctic warbler on Wikipedia.Wikipedia Phylloscopus borealis on Wikispecies.Wikispecies Category:Phylloscopus borealis on Wikimedia Commons.Wikimedia Commons