PRAIRIE HEN.
305. Tympanuchus americanus. 18 inches.
This is the most familiar game bird of the West; brownish above and white or buff below, with broad black bands on the back and finer black lines on the under parts. In place of the ruffs on a grouse are long tufts of rounded or square ended feathers, and below these a peculiar sac; bright orange in the breeding season, and capable of being inflated to the size of a small orange; this is done when the bird makes its familiar “booming” noise. They are one of the best “table birds,” being of good size and excellent flavor.
Nest.—In hollows on the ground in the cover of tufts of grass; they lay from eight to fifteen eggs, having a buffy ground color, finely sprinkled with brown spots (1.70 × 1.25).