. The birds of Illinois and Wisconsin. Birds; Birds. Jan., 1909. Birds of Illinois and Wisconsin—Cory. 549. American Crow. grayish green, thickly marked with different shades of dull brown, and measure about x inches. The Field Museum collection contains a number of sets of eggs taken in northern Illinois between April 17 and May 19. Genus NUCIFRAGA Brisson. Subgenus PICICORVUS Bonap. 222. Nucifraga columbiana (Wils.). Clarke's Nutcracker. Disir.: " Higher coniferous forests of western North America, from the eastern slope of the Rocky Mountains to the Pacific, and from Putnam R
. The birds of Illinois and Wisconsin. Birds; Birds. Jan., 1909. Birds of Illinois and Wisconsin—Cory. 549. American Crow. grayish green, thickly marked with different shades of dull brown, and measure about x inches. The Field Museum collection contains a number of sets of eggs taken in northern Illinois between April 17 and May 19. Genus NUCIFRAGA Brisson. Subgenus PICICORVUS Bonap. 222. Nucifraga columbiana (Wils.). Clarke's Nutcracker. Disir.: " Higher coniferous forests of western North America, from the eastern slope of the Rocky Mountains to the Pacific, and from Putnam River, Alaska, south to Arizona and northern Lower California. Accidental in Kansas, Missouri and Arkansas," (A. O. U.) Wisconsin. Adult: General plumage, pale ashy gray; dull white on forehead, chin and about the eyes; primaries and middle tail feathers, black, more or less tinged with blue black; tips of secondaries and outer tail feathers, white; bill, black. Length, about ; wing, ; tail, ; bill, 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 Cory, Charles B. (Charles Barney), 1857-1921. Chicago
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Keywords: ., bookauthorcory, bookcentury1900, bookdecade1900, booksubjectbirds
