One-colored Becard

The one-colored becard is about 16.5 cm (6.5 in) long and weighs about 35 g (1.2 oz). The species is sexually dimorphic. Adult males of the nominate subspecies have a mostly dark slaty gray head and upperparts with a slightly darker crown and lighter rump. Their wings and tail are dark slaty gray with paler edges on the remiges. Their underparts are a somewhat paler gray their upperparts. They sometimes have a faint pinkish wash on the throat and a slight dusky tinge on the breast and upper belly. Adult females have a rufous-chestnut to rufous tawny crown, upperparts, and tail. Voice: The one-colored becard's usual song is "a rather variable, loud, sharp, and sputtering or chattering stet-ee-ee-teet-tsit-tsit-tsitts-tsít or ske-e-et’et’ittt, tseer, tsrip". It also often gives a "squeaky and high-pitched tweíuuw".