Western bluebird Sialia mexicana

Adult males have dark blue head, back, and wings. Breast and sides are deep orange with orange sometimes bleeding onto back. Females are grayer overall with orange on breast, blue usually restricted to wings and tail. Favors fields with some trees and open woods. Often in small groups. Frequently perches on wires or fence posts. Nests in cavities. Range barely overlaps Eastern Bluebird, but note orange on back of males and grayer belly and sides of neck on female.