Range. - Pacific coast of North America from California to Washington.
This is the largest of the Partridges, being 11 inches in length. It is of a general grayish color, with chestnut throat patch, and chestnut flanks, barred with white. Two long plumes extend downward from the back of the head. This species nests abundantly in the mountainous portions of northern California and throughout Oregon, and is gradually increasing in numbers in Washington. As a rule they nest only on the higher mountain ranges, placing their nest of leaves under the protection of an overhanging bush or tuft of grass. Their eggs number from six to fifteen, and are of a pale reddish buff color. Size 1.35 x 1.05.
Mountain Partridge. Scaled Partridge.
Range. - Mountain ranges of California and Lower California, chiefly in the southern parts of the former. This species is like the latter except that it is grayer on the back of the head and neck. Its nesting habits and eggs are like the preceding.
Range. - San Pedro Mountains, Lower California This species, which is grayer above than the preceding two, breeds only in the highest peaks of its range. Otherwise its nesting habits and eggs are the same as the other Plumed Partridges.