ミミグロブユムシクイ Polioptila dumicola

Bold patterned gnatcatcher usually found in the canopy of savanna, open woodlands, and forest edges where it may join mixed-species flocks. Largely grayish overall with a white-edged black tail. Males have a black mask while females have a small black ear patch on a generally pale face. Males of the subspecies from Northwest Brazil are whiter below and grayish in other populations.