John T. Lokemoen David E. Sharp 1987 <p>A modified decoy trap was effective for capturing wild adult male and female mallards (<i>Anas platyrhynchos</i>) during the 1980-81 breeding seasons in North Dakota. Key features contributing to the trap's success included a central decoy cylinder, large capture compartments with spring-door openings, an adjustable trigger mechanism with a balanced door attachment that was resistant to trap movement, and the use of F1, wild-stock or game-farm female decoys.</p> application/pdf 10.2307/3801731 en Wiley A decoy trap for breeding-season mallards in North Dakota article