Order Pterocletes
Family Pteroclidæ
94. Syrrhaptes (Sandgrouse). Bill small, gradually decurved; nostrils basal, hidden; wings long, pointed, first primary largest; tail of sixteen feathers, cuneate, central pair long; tarsi short, strong; feathered to toes; three toes, all in front; hallux obsolete; soles rugose; claws broad and obtuse.
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Bill short and stout; culmen arched, and overhanging the mandible.
FAMILY TETRAONIDÆ
95. Tetráo (Black Grouse, Capercaillie). Bill strong; eyebrows naked, adorned with scarlet papillæ; tarsi feathered, without spurs; front toes naked, with pectinated margins; hind toe larger than the nail.
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96. Lagópus (Red Grouse, Ptarmigan). Front toes feathered, nearly smooth at the margins; hind toe shorter than the nail; in other respects like the last.
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FAMILY PHASIANIDÆ
Nostrils never hidden by feathers; toes never pectinated.
97. Phasiánus (Pheasant). Cheeks naked, adorned with scarlet papillæ; tail very long, of eighteen feathers.
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98. Perdix (Partridge). Bill strong; orbits naked; tarsus naked, male with a knob on the tarsus behind; tail of sixteen feathers, short, bent down.
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99. Caccabis (Red-legged Partridge). Tail of fourteen feathers; tarsi armed with blunt spurs in male.
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100. Coturnix (Quail). Bill slender; orbits feathered; wings with the first primary longest; tail very short; almost concealed by the tail-coverts.
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