A light eye stripe and supercilium are about the only features on the face. The dark eye stripe gives the eye ring a split appearance. These birds breed in brushy habitats and open shrubby mixed woodlands. The other identifying feature is the orange crown patch, usually only visible when the crown feathers are raised. A bit of the orange in the crown can be seen in this photo.
Males have a larger crown patch than females or immatures.
No particular identifying characteristics appear on the upper wing. These warblers have 9 primary flight feathers. Some of the primary flight feathers show emargination on the leading edges. A view of the drab underwing coverts and flank show no particular distinguishing features. The alula feather, also called the bastard wing, can be seen at the top center of the photo.