. The birds of Illinois and Wisconsin. Birds; Birds. N. Family MICROPODID^. Swifts. See page 169. First primary, about half as long as third; feet, zygodactyle (toes, two in front, two be- hind) ; outer tail feathers, very much shorter than middle feathers. Family CUCULID^. Cuckoos. See page 161. Feet, syndactyle; toes, four, the middle and outer ones joined, being fastened together for more than half their length.. 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 no
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The Book Worm / Alamy Stock PhotoImage ID:
RDMFF6File size:
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1973 x 1267 px | 33.4 x 21.5 cm | 13.2 x 8.4 inches | 150dpiMore information:
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. The birds of Illinois and Wisconsin. Birds; Birds. N. Family MICROPODID^. Swifts. See page 169. First primary, about half as long as third; feet, zygodactyle (toes, two in front, two be- hind) ; outer tail feathers, very much shorter than middle feathers. Family CUCULID^. Cuckoos. See page 161. Feet, syndactyle; toes, four, the middle and outer ones joined, being fastened together for more than half their length.. 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 work.. Cory, Charles B. (Charles Barney), 1857-1921. Chicago