. The birds of Illinois and Wisconsin. Birds; Birds. Jan., 1909. Birds of Illinois and Wisconsin—Cory. 161 Family CUCULIDiE. Cuckoos. Feet, zygodactyle (two toes in front, two behind); first primary, about half as long as third; outer tail feathers, much shorter than middle Yellow-billed Cuckoo. Upper parts, brownish gray, with faint gloss of greenish; under mandible, mostly yellow; greater portion of primaries, rufous brown, tipped with grayish olive; under parts, dull white; outer tail feathers, black, tipped with white. Coccyzus americanus. Yellow-billed cuckoo. See No. 185. Upper pa
. The birds of Illinois and Wisconsin. Birds; Birds. Jan., 1909. Birds of Illinois and Wisconsin—Cory. 161 Family CUCULIDiE. Cuckoos. Feet, zygodactyle (two toes in front, two behind); first primary, about half as long as third; outer tail feathers, much shorter than middle Yellow-billed Cuckoo. Upper parts, brownish gray, with faint gloss of greenish; under mandible, mostly yellow; greater portion of primaries, rufous brown, tipped with grayish olive; under parts, dull white; outer tail feathers, black, tipped with white. Coccyzus americanus. Yellow-billed cuckoo. See No. 185. Upper parts, grayish brown, with faint gloss of green; bill, black; no rufous brown on primaries; under parts, dull white; outer tail feathers, like back in color. Coccyzus erythrophthalmus. Black-billed Cuckoo. See No. 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
