The Masked Gnatcatcher searches woodland and scrub for small insects. Males have a black facial mask; females have a white eye-ring and cheeks.
It is blue-grey above and lighter grey below, with white-edged black wings and a black tail with white outer feathers. Males have a black mask bordered by a thin white line; females have a narrower black area, white eye-ring, cheeks, and lores.
It lives in light woodland, gallery woodland, and scrub, searching the canopy for small insects. It is often in pairs during breeding and may join mixed flocks at other times. Both parents care for the young; reports describe young staying with their parents for six to seven months.
An extinction-risk assessment has not been added yet.