Range. - Interior of United States and Canada, from the Mississippi Valley to the Rockies, breeding from Iowa and Colorado northward; winters in Mexico.

These birds can best be described as like the Chipping Sparrow with the brown largely replaced with blackish. They breed quite abundantly in Manitoba and Minnesota, placing their nests on or near the ground, and making them of fine grasses. The eggs cannot be distinguished with certainty from those of the preceding but average a trifle smaller. Size .65 x .50. Data. - Barnsley, Manitoba, May 24, 1900. Nest of grass stalks lined with fine grass, one foot above ground in tuft of grass.

Bluish white.

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