Blackburnian Warbler Life History


Habitat Forests

  • Breeds in mature coniferous and mixed coniferous/deciduous forests.
  • Winters in montane forests.
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Food InsectsInsects and spiders.Back to top


Nest Placement

Nest Tree

Nest Description

Open cup of twigs, bark, plant fibers, and rootlets held to branch with spider web. Lined with lichens, moss, hair, and dead pine needles. Placed near tip of branch of conifer.

Nesting Facts
Clutch Size:3-5 eggs
Egg Description:White or greenish white with brown spots and blotches.
Condition at Hatching:Helpless with tufts of down.
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Behavior Foliage GleanerGleans insects on small branches high in tree.Back to top


Conservation Low ConcernBlackburnian Warbler populations are stable. Partners in Flight estimates a global breeding population of 10 million birds with 28% spending some part of the year in the U.S, 72% in Canada, and all of them migrating through Mexico on the way south to their wintering grounds. They are a U.S.-Canada Stewardship species and rate a 9 out of 20 on the Continental Concern Score. They are not on the 2014 State of the Birds Watch List. Back to top


Dunn, J. L. and K. L. Garrett. 1997. A Field Guide to the warblers of North America. Boston, MA: Houghton Mifflin Co.

Lutmerding, J. A. and A. S. Love. Longevity records of North American birds. Version 2015.2. Patuxent Wildlife Research Center, Bird Banding Laboratory 2015.

Morse, Douglass H. 2004. Blackburnian Warbler (Setophaga fusca), version 2.0. In The Birds of North America (P. G. Rodewald, editor). Cornell Lab of Ornithology, Ithaca, New York, USA.

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.

Sauer, J. R., J. E. Hines, J. E. Fallon, K. L. Pardieck, Jr. Ziolkowski, D. J. and W. A. Link. The North American Breeding Bird Survey, results and analysis 1966-2013 (Version 1.30.15). USGS Patuxtent Wildlife Research Center 2014b. Available from

Sibley, D. A. (2014). The Sibley guide to birds, second edition. Alfred A. Knopf, New York, USA.

Stephenson, T. and S. Whittle (2013). The Warbler Guide. Princeton University Press, New Jersey, USA. 

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