. The birds of Illinois and Wisconsin. Birds; Birds. I20 Field Museum of Natural History—Zoology, Vol. IX. Bill, very slightly hooked, not wide and flat at base, as in the Flycatchers; toes, joined together at base. Plain colored birds, usu- ally greenish or grayish, but often show a faint wash of yellow on under parts; tail, always without white spots; first primary, variable, very short in some species, in others nearly as long as second. Family VIREONIDjE. Vireos. See page 227. PART 2. Tip of upper mandible, not notched or hooked. First primary, not short, never less than two thirds as long
. The birds of Illinois and Wisconsin. Birds; Birds. I20 Field Museum of Natural History—Zoology, Vol. IX. Bill, very slightly hooked, not wide and flat at base, as in the Flycatchers; toes, joined together at base. Plain colored birds, usu- ally greenish or grayish, but often show a faint wash of yellow on under parts; tail, always without white spots; first primary, variable, very short in some species, in others nearly as long as second. Family VIREONIDjE. Vireos. See page 227. PART 2. Tip of upper mandible, not notched or hooked. First primary, not short, never less than two thirds as long as second or third; bill, stout and conical; nostrils, high near the cul- men; primaries, 9; tarsus, flattened behind. Side ofbi//. Family Sparrows, Finches, Buntings, etc. See page First primary, not short, never less than two thirds as long as third, and often nearly the same length; bill, slender and pointed; back of tarsus, thin and sharp, not rounded as in front; hind toe and claw, not longer than middle toe and claw. Family MNIOTILTIDiE. Warblers, See page 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
