Western Bird Guide: Birds of the Rockies and West to the Pacific

by Charles K. Reed

Found from Colorado to Mexico in the Rockies (not illustrated).

GREEN-BACKED GOLDFINCH.

530a. Astragalinus p. hesperophilus. 5 inches.

In southwestern United States from Central California to Mexico.

LAWRENCE GOLDFINCH.

531. Astragalinus lawrencei. 4½ inches.

This bird differs from the others of this family in being mostly gray in place of the yellow, having the head and throat black. They are found quite commonly on the Pacific coast of California, and south to Mexico. Their nests are nicely made, cup-like structures of plant down, in which they deposit four white eggs.

PINE SISKIN.

533. Spinus pinus. 5 inches.