Forest birds common to the Hager Mountain area include mountain chickadee, Lazuli bunting, green-tailed towhee, MacGillivray's warbler, white-crowned sparrow, sage sparrow, black-headed grosbeak, Woodhouse's scrub jay, Pinyon jay, and black-billed magpie. There are also at least three woodpecker species that live on or near Hager Mountain, including the black-backed woodpecker, white-headed woodpecker, and Lewis's woodpecker. Larger birds found in the area include barn owls, great gray owls, great horned owls, red-tailed hawks, turkey vultures, golden eagles, and bald eagles.