Andean Pygmy Owl
Glaucidium jardinii
The Andean pygmy owl is 15 to 16 cm (5.9 to 6.3 in) long. Males weigh 54.9 to 77.4 g (1.9 to 2.7 oz) and females 54.6 to 75 g (1.9 to 2.6 oz). It has two distinct color morphs; in one the head, most of the body, wings, and tail are dull dark brown with white markings and in the other the same areas are dark chestnut with buff markings. In both the crown has small white dots. They have white "brows" over yellow eyes, white "moustaches", and a broad white throat. Their nape has a black and white face-like pattern. Their backs have spots and the tail bars, white or buff respectively. Voice: The Andean pygmy owl's song is a "long series of rapidly delivered, evenly spaced 'poop' notes" that is sometimes preceded by two whistles.
ID text from Wikipedia, CC BY-SA 4.0

Central American Pygmy Owl
Glaucidium griseiceps
The Central American pygmy owl is 13 to 18 cm (5.1 to 7.1 in) long. Males weigh 50.6 to 58.8 g (1.78 to 2.07 oz) and females about 56 g (2.0 oz). Adults' crown and nape are grayish brown; the crown has buff to whitish spots and the nape dark "false eyes". Their upperparts and tail are rich brown and the tail has pale bars across it. Their underparts are whitish with reddish brown streaks. The juvenile's crown and nape are gray; the crown is unspotted and the nape's false eyes are sooty. Voice: The Central American pygmy owl's song "begins with 2–4 equally spaced hoots, followed by very brief pause, then series of 6–18 very similar notes, 'huu-huu, huu-huu-huu...'". It is sometimes preceded by trills.
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: Andean Pygmy Owl and Central American Pygmy Owl.