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By: Burns, Frank L. (Franklin Lorenzo),Edition:Publication info: Oberlin, Ohio, The Wilson Ornithological Chapter of the Agassiz Association, 1895Volume:Series:Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr LibrarySubjects: CrowsBHL Collections:
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By: Kalmbach, E. R. (Edwin Richard),Edition:Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1918Volume: no.621 (1918)Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects: CrowsBHL Collections:
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By: Kalmbach, E. R. (Edwin Richard),Edition:Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920Volume:Series:Holding Institution: Multiple institutionsSubjects: Birds Crows FoodBHL Collections:
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By: Diederich, Franz,Edition:Publication info: Gera, T. Hofmann, 1889Volume:Series:Holding Institution: Smithsonian Libraries and ArchivesSubjects: Crows RavensBHL Collections:
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By: Dewar, Douglas,Edition:Publication info: Madras, Higginbotham, 1905Volume:Series:Holding Institution: Smithsonian Libraries and ArchivesSubjects: CrowsBHL Collections:
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By: Rand, Austin Loomer, - Rabor, Dioscoro S.Edition:Publication info: [Chicago], Chicago Natural History Museum, 1961Volume: v.39:no.52 (1961)Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects: Birds Crows PhilippinesBHL Collections: