White-ringed Flycatcher

The white-ringed flycatcher is 15 to 16.5 cm (5.9 to 6.5 in) long and weighs about 24 g (0.85 oz). The sexes have the same plumage; females are slightly smaller than males. Adults of the nominate subspecies have a black to dark sooty brownish crown and face with a mostly hidden lemon-yellow to canary-yellow patch in the center of the crown. They have a white supercilium that begins at the forehead, widens behind the eye, and wraps almost all the way around the nape. Their upperparts vary from grayish olive-green to dark olive or olive-brown. Voice: The white-ringed flycatcher's call is described as very distinctive. It "commences with a long note, followed by rapid, rattling or whirring, repetitive trill, tre-r-r-r-r, tre-r-r-r-r…, kree-ee-ee-eer".