. Bulletin. Natural history; Natural history. illiiSiiSS SHOVELER •f:yM^/^:^^^///^:^- Hens ::::::::>:::??::M-Mv:-:. 25 15-31 1-15 16-30 1-15 OCTOBER NOVEMBER DECEMBER Fig. 4.—Drake-hen composition of the au- tumn flights of mallards, green-winged teals, and shovelers in Utah, as indicated by data from checks of hunters' bags, in the autumns of 1943, 1944, and Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Il

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. Bulletin. Natural history; Natural history. illiiSiiSS SHOVELER •f:yM^/^:^^^///^:^- Hens ::::::::>:::??::M-Mv:-:. 25 15-31 1-15 16-30 1-15 OCTOBER NOVEMBER DECEMBER Fig. 4.—Drake-hen composition of the au- tumn flights of mallards, green-winged teals, and shovelers in Utah, as indicated by data from checks of hunters' bags, in the autumns of 1943, 1944, and Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division

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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory