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      Common tern colony damaged, chicks killed

      Common terns (Photo courtesy Wisconsin DNR)
      Common terns (Photo courtesy Wisconsin DNR)
      WINNEBAGO COUNTY - Around two dozen chicks died when someone damaged a colony of common terns on an island in Lake Butte des Morts, the DNR says.

      A DNR worker discovered the damage Tuesday night. Some of the chicks had been crushed by foot or with a rock.

      The chicks were between two and 21 days old.

      The common tern is on the state's endangered species list.

      Anyone with information is asked to call the DNR tip line at 1-800-847-9367.