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Arctic Warbler Life History


Habitat ForestsBreeds in taiga, mainly in stands of dwarf willow, often along streams. Also in spruce woods in central Alaska.Back to top


Food InsectsInsects.Back to top


Nest Placement

Nest Ground

Nest Description

Domed nest of grasses, mosses and leaves, with lining of fine grass and hair. Entrance hole on side. Placed in vegetation on ground.

Nesting Facts

Clutch Size:5-7 eggs
Egg Description:White with russet spots, denser at larger end.
Condition at Hatching:Naked and helpless.
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Behavior Foliage GleanerConstant wing flicking while foraging may flush prey. Picks insects off vegetation.Back to top


Conservation Low ConcernArctic Warbler breeding areas in North America are remote and largely unaltered by humans. Partners in Flight estimates a global breeding population of 60 million, with 3% breeding in the U.S. They rate an 8 out of 20 on the Continental Concern Score and are not on the 2014 State of the Birds Watch List.Back to top


Lowther, Peter E. and Susan Sharbaugh. (2014). Arctic Warbler (Phylloscopus borealis), version 2.0. In The Birds of North America (P. G. Rodewald, editor). Cornell Lab of Ornithology, Ithaca, New York, USA.

Lutmerding, J. A. and A. S. Love. (2019). Longevity records of North American birds. Version 1019 Patuxent Wildlife Research Center, Bird Banding Laboratory 2019.

North American Bird Conservation Initiative. (2014). The State of the Birds 2014 Report. US Department of Interior, Washington, DC, USA.

Partners in Flight (2017). Avian Conservation Assessment Database. 2017.

Sibley, D. A. (2014). The Sibley Guide to Birds, second edition. Alfred A. Knopf, New York, NY, USA.

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