Range. - Mountain ranges of Mexico, north to Colorado and west to California.
This species is smaller than asio, has shorter ear tufts, the plumage is much streaked and edged with rusty, and the toes are unfeathered to their base. They nest in hollow trees, generally using deserted Woodpecker holes. Their three or four eggs are white. Size 1.15 x .95. This species is uncommon in all parts of its range.
Range. - Local in Idaho, eastern Washington and California. This rare variety is smaller than the preceding and is considerably paler. Its eggs have not been described, but should be a trifle smaller than the last.
374 - 375a