Frequents coniferous and mixed coniferous-deciduous forests; typically inhabits more densely forested areas than open woodlands and scrub-like habitats of the Western Scrub Jay.

A stunning, deep blue over most of plumage, darkest on head and face. Also sports a distinctive crest. Listen for its loud, repetitive cries, in woodlands and forests; sometimes imitates the calls of hawks.

Its bulky, cup-shaped nest is constructed in trees from twigs, leaves, and mud. An omivorous feeder, its diet of plant and animal matter is widely varied.