. Handbook of birds of the western United States, including the great plains, great basin, Pacific slope, and lower Rio Grande Valley . X Fig. 1S4. Tail feathers broad and rounded. ], !Sides of neck with tuft of Tympanuchus, p. IJO. 114 GROUSE, PARTRIDGES, QUAILS, ETC. 3. Sides of neck without tuft of feathers. 4. Tail strikingly graduated, middle feathersmuch the longest. Pedioecetes, p. 4. Tail not strikingly graduated, middle feath-ers not much the longest. 5. Toes feathered 5. Toes naked. Lagopus, p. 128.

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