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Arctic Warbler

Arctic Warbler
Phylloscopus borealis
Perching Birds | Family: Old World Warblers and Gnatcatchers, Sylviidae

An estimated 36% of the species' North American population breeds within the Boreal Forest.



This bird is the only North American pioneer from a large genus of similarly colored Old World warblers. It most resembles the Tennessee Warbler, whose range it does not overlap.


4 3/4" (12 cm). Olive green above, with dark line through eye and light greenish-yellow eyebrow. Whitish throat and belly; olive-gray sides; indistinct single wing bar. Pale legs.


A quick trill, introduced by zick or zick-zick-zick. The call is also zick or zirrup.


5-7 pink-speckled white eggs in a domed cup nest placed in grass on the ground.


Birch woods, willow thickets.


Breeds in western and northern Alaska. Also in northern Eurasia.