Todd's Sirystes

Todd's sirystes is 18 to 18.5 cm (7.1 to 7.3 in) long and weighs 34 to 36.5 g (1.2 to 1.3 oz). The sexes have the same plumage. Adults have a black crown with a slight crest. The rest of their face is slate gray. Their nape and back are mottled medium gray with a large white rump patch. Their wings are blackish with gray edges on the coverts and white edges on the inner flight feathers. Their tail is long, blackish, and has a square tip. Their throat and breast are gray that becomes white on the belly. They have a dark brown iris, a black bill, and black or gray legs and feet. Voice: Todd's sirystes typically gives a series of wheer whistles though sometimes gives only single notes. It also gives a "chattering song" written as "wuh-wíwi-wuh".