. Bulletin. Natural history; Natural history. T 1 r 15 18 25 1 8 15 OCTOBER NOVEMBER Fig. 16.—Seasonal trend in activity of hunters at Illinois River valley waterfowl hunting clubs, 1940-1942. 3 20 DECEMBER 27 S 21 iij Q. 15 CO a: 12 \- z 3 X 6 3 h 0 L NUMBER OF HUNTERS NUMBER OF DUCKS KILLED. '-' oj cvj ^ Al O I^ SEPTEMBER OCTOBER NOVEMBER DECEMBER Fig. 17.—Weekly averages of number of hunters in action and ducks killed at Duck Islani Preserve over a 23-year period. Please note that these images are extracted from scanned page images that may have been digitally enhanced for reada
. Bulletin. Natural history; Natural history. T 1 r 15 18 25 1 8 15 OCTOBER NOVEMBER Fig. 16.—Seasonal trend in activity of hunters at Illinois River valley waterfowl hunting clubs, 1940-1942. 3 20 DECEMBER 27 S 21 iij Q. 15 CO a: 12 \- z 3 X 6 3 h 0 L NUMBER OF HUNTERS NUMBER OF DUCKS KILLED. '-' oj cvj ^ Al O I^ SEPTEMBER OCTOBER NOVEMBER DECEMBER Fig. 17.—Weekly averages of number of hunters in action and ducks killed at Duck Islani Preserve over a 23-year period. 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
Size: 1900px × 1316px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
