. On the natural history and classification of birds . ated, but neither toothed nor festooned; the tip veryacute, and considerably hooked and lengthened. Feet,(typically) weak, very short; the tarsus not much longerthan the hind toe and its claw; soles broad, destitute ofpads; lateral toes equal. Wings long ; the third andfourth quill longest. Inhabits chiefly America. FALCONIDiE. CYMINDINjE. 209 Ibycter, Vieillot. Bill feeble, small,, very slightlyhooked; the cutting margin sinuated, but not fes-tooned: under mandible nearlystraight. Orbits, sides of thehead, and part of the throat,more or l

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. On the natural history and classification of birds . ated, but neither toothed nor festooned; the tip veryacute, and considerably hooked and lengthened. Feet,(typically) weak, very short; the tarsus not much longerthan the hind toe and its claw; soles broad, destitute ofpads; lateral toes equal. Wings long ; the third andfourth quill longest. Inhabits chiefly America. FALCONIDiE. CYMINDINjE. 209 Ibycter, Vieillot. Bill feeble, small,, very slightlyhooked; the cutting margin sinuated, but not fes-tooned: under mandible nearlystraight. Orbits, sides of thehead, and part of the throat,more or less naked. Wings ,rather lengthened; the thirdquill longest. Tail lengthened,rounded; the feathers verybroad. Tarsi slender, mo-derate, naked: lateral toes un-equal ; the hinder toe much shorter than the inner only. {fig. 186.)I. leucogaster. Vieil. Gal. 6. (a) Polyborus, Vieil. Form aqui-line : size moderate. Bill withthe base rather straight. Nos-trils oval, obliquely and face partially naked,ened, naked, very ater. [b) Vieil. Gal. 5.

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Keywords: ., bookcentury1800, bookid, booksubjectbirds, booksubjectornithology