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at Lake McConaughy in western Nebraska (Rosche and Johnsgaard <br />1984) and on the Middle Loup and Loup rivers in central and <br />eastern Nebraska (R. Lock, Nebraska Game and Parks Commission). <br />Breeding activity in Iowa has occurred during the past five <br />years on ash ponds owned by Iowa Public Service in Woodbury <br />County and by Iowa Power and Light in Pottawattamie County along <br />the Missouri River (Wilson et al. 1983; D. Howell, Iowa Natural <br />Areas Inventory). Potential breeding habitat has been created at <br />DeSoto National Wildlife Refuge ( Harrison County) but birds have 10 <br />not yet nested there (G. Gage, De Soto National Wildlife Refuge). 10 <br />Birds nesting at Lake of the Woods in Minnesota use habitat <br />similar to both prairie and Great Lakes areas. Currently, Piping <br />Plovers breed on state -owned sites on Pine and Curry Island, <br />Morris Point, Rocky Point, and Zippel Bay (Wiens and Cuthbert ET <br />1984, Wiens 1986, Haig and Cring 1987b). 0 <br />Great Lakes Region: In Minnesota, a few pairs have been <br />known to breed annually at the Duluth Port Terminal in St. Louis 10 <br />County (Niemi and Davis 1979, Davis 1985). Breeding activity in <br />Wisconsin is confined to Long Island in Lake Superior's <br />Chequamegon Bay (Ashland County) (Matteson 1978, 1979, 1980, <br />1981, 1987). Here, success has been poor, and breeding have come <br />to an end due to vegetation encroachment and human disturbance <br />(Matteson 1987). During the 1985 field season, only one lone <br />adult was present. The only productive breeding populations <br />e <br />remaining on the Great Lakes are in northern Michigan. In 1' <br />Michigan Department of Natural Resources surveys found bre( <br />14` <br />t <br />1 <br />