Family MIMIDÆ.—SAGE THRASHER.

702. Oreoscoptes montanus. 8½ inches.

Range.—From Lower California and Mexico on the plains to Montana. This is an abundant bird in the sage regions of the plains throughout its range, and are frequently called the Mockingbird, on account of the varied song which they give from the top of some sagebrush or cactus, in which they nest. Four eggs, greenish, spotted with brown (.60 × .55).

Family CINCLIDÆ.

DIPPER, OR WATER OUZEL.

701. Cinclus mexicanus unicolor. 8 inches.

Range.—Mountains of western North America from Alaska to Mexico. Among the rapid streams that are falling down the mountain side, these gray birds are to be found. They are strange members of bird life; they do not have webbed feet, and yet they swim on, or under the water, using their wings as paddles. They have a thrush-like bill, the habit of teetering similar to the sandpiper, and a song that is not to be forgotten if once heard. They nest on the rocks of these rapid streams, making their nest of moss, a bulky affair with an opening in the side, in which they deposit their four or five eggs of pure white (1.00 × .70).

WESTERN MOCKINGBIRD