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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. Longevity records of North American birds. Version 2015.2. Patuxent Wildlife Research Center, Bird Banding Laboratory 2015.

    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, David Allen. 2014. The Sibley guide to birds, second edition. Alfred A Knopf, New York.

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