. Bulletin. Natural history; Natural history. Sept., 1970 Bellrose & Crompton: Migrational Behavior of Ducks. MALLARD-CALHOUN REFUGE Indirect Recoveries Fig. 12. —The mean line of indirect recoveries from mallards banded at the Calhoun Refuge Jersey County, Illinois, 1947 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
. Bulletin. Natural history; Natural history. Sept., 1970 Bellrose & Crompton: Migrational Behavior of Ducks. MALLARD-CALHOUN REFUGE Indirect Recoveries Fig. 12. —The mean line of indirect recoveries from mallards banded at the Calhoun Refuge Jersey County, Illinois, 1947 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
