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By: McAtee, W. L. (Waldo Lee)Edition:Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1918Volume: no.720 (1918)Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects: Ducks Feeding and feeds MallardBHL Collections:
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By: Sanderson, Glen C. - Anderson, William L. - Brawn, Jeffrey D - Duncan, Karen L. - Foley, George L. - Seets, James W - Skowron, Loretta M. - Illinois. Natural History Survey DivisionEdition:Publication info: Champaign, IL, Illinois Natural History Survey, [1997]Volume: 35:3-4Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects: Bismuth alloys Diseases Environmental aspects Game farms Illinois Mallard Reproduction Reproductive toxicology Shot (Pellets) ToxicologyBHL Collections:
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By: Sanderson, Glen C. - Norton, Horace W. - Hurley, Sarah S. - Illinois. Natural History Survey DivisionEdition:Publication info: Champaign, Ill, Illinois Natural History Survey, 1981Volume: 116Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects: Diseases Lead Mallard ToxicologyBHL Collections:
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By: Yetter, Aaron P. - Warwick, Charles. - Levengood, Jeffrey M. - Illinois. Natural History Survey DivisionEdition:Publication info: Champaign, Ill, Illinois Natural History Survey, 2009Volume: 39:1 (2009)Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects: Mallard NestsBHL Collections: