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Lead exposure in bald eagles


 During winter, bald eagles congregate in high numbers along the Upper Mississippi River and other large waterways in the states of Illinois, Iowa, Wisconsin and Minnesota. Researchers with U.S. Fish & Wildlife Service began a study in 2011 to assess lead exposure in bald eagles that inhabit the Upper Midwest including the Refuge. Thousands of bald eagles winter and hundreds of eagles nest in spring on the Refuge annually.

  • Information Sessions


     We will host a series of four information sessions to share the results of research demonstrating the relationship between lead ammunition and lead exposure in bald eagles. A presentation will begin at 6:15 p.m. at each session and will highlight the results of a two-year study which collected 168 deceased bald eagles from the Upper Midwest and examined them for lead exposure.

  • Where and When


     Information sessions will be held on:

    June 10, 2014
    Thomson, Illinois
    6:00 p.m. - 8:00 p.m.
    Refuge Visitor Center
    7071 Riverview Road
    Thomson, IL 61285

    June 12, 2014
    Prairie du Chien, Wisconsin
    6:00 p.m. - 8:00 p.m.
    Community Center
    214 East Blackhawk Avenue
    Prairie du Chien, WI 53821

    June 18, 2014
    Winona, Minnesota
    6:00 p.m. - 8:00 p.m.
    Winona Historical Society
    160 Jackson Street
    Winona, MN 55987

    June 19, 2014
    Onalaska, Wisconsin
    6:00 p.m. - 8:00 p.m.
    Refuge Visitor Center
    N5727 County Road Z
    Onalaska, WI 54650


  • Recommendations and Suggestions

    Written suggestions should be submitted to: Wildlife Refuge Manager, 51 East 4th Street, Room 101, Winona, MN 55987 or email

  • Journal of Fish and Wildlife Management

    Bald Eagle Lead Exposure in the Upper Midwest


  • Study Summary

     Lead exposure in Bald Eagles in the Upper Midwest - Study Summary

    Learn More
Last Updated: Jun 12, 2014
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