Very rare along the coast, this female has been in the area since at least 2 December 2020. Females are variable with a grayish or pale rusty wash on the chest and may be confused with female Western Bluebirds. However Mountain Bluebirds have a longer, thinner bill, longer wings and tail and whiter belly. On female Western the back is brown but in female Mountain Bluebird it is gray as seen here. Female Eastern Bluebird (not yet recorded in California) has more obvious rusty color extending up onto the sides of the neck.
