These are a more northern bird, breeding mostly to the Canadian zone, and in the Rockies and higher mountains to the west. They feed largely upon weed seeds and seeds from the different coniferous trees, the latter of which they most often frequent, building their nests in these trees of twigs and rootlets loosely put together and placed on the crotch of a horizontal limb; usually four eggs, of a greenish white color, spotted finely with reddish brown (.65 × .45). They have a habit, while feeding, of clinging to the under side of a branch or cone, similar to the [Chickadee], and, if disturbed when on some favorite tree, will make a short flight and circle back to the same tree.
SNOW BUNTING OR SNOWFLAKE.
534. Plectrophenax nivalis. 7 inches.
To be found in the whole of the northern hemisphere, breeding within the Arctic Circle and wintering south to the central portions of the United States. They are one of the birds that change their dress completely from winter to summer, in color. In winter they are a clear black and white, while in summer the black is changed for a coat of chestnut or brownish. They are to be found in the winters, on the hillsides and in fields where the weeds are showing through, feeding upon the small seeds, and at this time they are as restless and uncertain as the snowflake itself, from which it is called. They nest on the ground, making it of dried grasses and lining with finer grass and feathers; the four or five eggs are a dull white, spotted and splashed with shades of brown, mostly on the larger end (.90 × .65).
McKAY SNOW BUNTING.
535. Plectrophenax hyperboreus. 7 inches.
This species is still more white than the preceding, having only a few specks of black on the tips of the primaries, and the central tail feather. They build, in crevices of the rocks on the ground, a nest of grass, lined with moss and feathers.
