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<br />Avian predators at ODFW Hatcheries: <br />Their Identification and Control <br /> <br />Leslie Schaeffer <br />Technical Services <br /> <br />Oregon Department of Fish and wildlife <br />2501 s.w. First Avenue <br />P.O. Bo~ 59, <br />Portland, OR 97207 <br /> <br />February 1992 <br />