Dusky-chested Flycatcher
Myiozetetes luteiventris
The dusky-chested flycatcher is the smallest member of genus Myiozetetes. It is 14 to 15 cm (5.5 to 5.9 in) long and weighs about 16.5 g (0.58 oz). The sexes have almost the same plumage. Adult males of the nominate subspecies have a grayish olive-brown crown and face with a mostly hidden yellow-orange patch in the center of the crown. Females have a smaller patch or none at all. Adults of both sexes have dark olive-brown upperparts. Their wings are dark olive-brown with faint and variable rufous edges on the flight feathers. Their throat is whitish with faint dusky streaks. Voice: The dusky-chested flycatcher's most common call is "a nasal, cat-like meeow or softer neea". It makes a "fast nasal nyeeuw-nyeeuw, keep-kít or neea-ne-wít" when it is excited; sometimes pairs do this in duet. It also makes simple, often repeated, "keeuw or nyeeuw" calls.
ID text from Wikipedia, CC BY-SA 4.0

Social Flycatcher
Myiozetetes similis
The social flycatcher is 16 to 18.5 cm (6.3 to 7.3 in) long and weighs 24 to 27 g (0.85 to 0.95 oz). The sexes have the same plumage, though females average slightly smaller than males. Adults of the nominate subspecies M. s. similis have a dark gray to brownish gray head with a mostly hidden bright red to orangish red patch in the center of the crown. They have a wide white supercilium that begins on the forehead and extends far past the eye. Voice: What is thought to be the social flycatcher's dawn song is a "shrill note repeated several times, sometimes followed by longer and continuously repeated series, seeu, seeu, see-u-chú, sree, sree, sree si-si-chuhr, or shorter but still repeated chirrrr". It also makes "a shrill and piercing seeá, tcheiit or see-yh!
ID text from Wikipedia, CC BY-SA 4.0

Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Dusky-chested Flycatcher and Social Flycatcher.