Western Bluebird:
The Western Bluebird is most likely to be confused with other bluebirds. Male Western Bluebirds have blue throats while male Easterns have orange-red ones. Male Mountain Bluebirds lack any reddish coloration on their underparts. Females are more difficult to separate. Western Bluebirds have gray throats and gray bellies while Eastern Bluebirds have a brownish throat and white belly. Western Bluebirds are browner on the breast than Mountain Bluebirds and have thicker bills. [Illustration by Peter LaTourrette]
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