. Bulletin. Natural history; Natural history. October, 1963 Graber & Graber: Bird Populations in Illinois 399 Table 5.—Continued Northern Zone , Central Zone Southern Zone Species 1909 (351) 1957 (317) 1958 (299) 1907 (668) 1909 (488) 1957 (328) 1958 (290) 1907 (550) 1909 (433) 1957 (103) 1958 (156) Song sparrow- + + 3 63 28 .... 1 S6 24 + + 2 SS 28 + + + + + 35 35 1 47 25 + 2 73 19 T 32 + + + + 1 45 + + 1 74 36 1 47 17 Great blue heron Black-crowned night heron Red-tailed hawk ... Red-shouldered hawk . Yellow-billed cuckoo Common night- hawk Belted Downy wood- pecker Tree s
. Bulletin. Natural history; Natural history. October, 1963 Graber & Graber: Bird Populations in Illinois 399 Table 5.—Continued Northern Zone , Central Zone Southern Zone Species 1909 (351) 1957 (317) 1958 (299) 1907 (668) 1909 (488) 1957 (328) 1958 (290) 1907 (550) 1909 (433) 1957 (103) 1958 (156) Song sparrow- + + 3 63 28 .... 1 S6 24 + + 2 SS 28 + + + + + 35 35 1 47 25 + 2 73 19 T 32 + + + + 1 45 + + 1 74 36 1 47 17 Great blue heron Black-crowned night heron Red-tailed hawk ... Red-shouldered hawk . Yellow-billed cuckoo Common night- hawk Belted Downy wood- pecker Tree swallow Bewick's wren Carolina wren Baltimore oriole Rose-breasted grosbeak Grasshopper sparrow Unidentified bird . Total birds per 100 acres 2 72 Number of species 19 37 19. Fig. 11.—Cornfield habitat at the stage of growth encountered at the time of the June censuses. Photograph taken in Champaign County, June, 1958, by Jean W. 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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Photo credit: © Library Book Collection / Alamy / Afripics
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
