Spatial Distributions of Ponds and Breeding Ducks in the U. S. Prairie Pothole Region
Terry L. Shaffer, Ronald E. Reynolds, Charles R. Loesch, and Brian Wangler
Spring Migration Ecology of American Black Ducks Determined by Satellite Telemetry
Kurt A. Anderson, Jacob L. Bowman, John M. Coluccy, and Tina Yerkes
Satellite Tracking Mallards from Arkansas during Spring and Fall Migration
David G. Krementz, Kwasi Asante, and Luke W. Naylor
