Fairly large flycatcher, barely smaller than a robin. Favors open habitats with tall shrubs and trees. Usually seen on an obvious perch. Most similar to Cassin's Kingbird, with a gray head and yellow belly. Cassin's is not as widespread. Western is separated by paler gray head that fades to whiter throat and breast. Also note black tail with white edges (white stripe along vertical edge of outer tail feathers).