Масковая титира Tityra semifasciata

Handsome, mostly silvery gray bird of tropical and subtropical forest and adjacent semi-open areas with taller trees. Usually found at mid-upper levels of fruiting trees, sometimes in small groups. Identified readily by pinkish base to bill and pinkish ‘mask’ around eyes. Females in most areas have a dark brownish head, but in West Mexico the females have a pale gray head and back. Distinctive call is a wet quacking or farting sound.