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    Williamson's Sapsucker Life History

    Behavior

    Behavior Bark ForagerBack to top

    Conservation

    Conservation Low ConcernWilliamson's Sapsucker populations appear to have experienced a small decline between 1966 and 2014, according to the North American Breeding Bird Survey. Partners in Flight estimates a global breeding population of 300,000, with 100% spending part of the year in the U.S., and 53% wintering in Mexico. This is a U.S.-Canada Stewardship species, and is rated a 13 out of 20 on the Continental Concern Score. Williamson's Sapsucker is not on the 2014 State of the Birds Watch List. Back to top

    Credits

    Gyug, Les W., R. C. Dobbs, Thomas E. Martin and Courtney J. Conway. 2012. Williamson's Sapsucker (Sphyrapicus thyroideus), 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 http://www.mbr-pwrc.usgs.gov/bbs/.

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

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