Band-bellied Owl
Pulsatrix melanota
The band-bellied owl is fairly large, ranging from 44 to 48 cm (17 to 19 in) long. An analysis of the weight of 13 birds of both sexes showed a range of 590 to 1,250 g (1.30 to 2.76 lb) and an average of 873 g (1.925 lb). The adult has a dark brown facial disk and white "brows" over dark reddish brown eyes. Its upperparts are dark chocolate brown with scattered buffy-white spots. The tail is also dark brown, with thin white bars. The upper breast is reddish brown with buff barring. The rest of the underparts are white to creamy with reddish brown barring. Voice: The band-bellied owl's vocalizations are also poorly known. It is "aid to give a short, deep trill followed by fast burst of popping notes", and "deep, muffled hoots" have been recorded in Peru. The sexes perform duets.
ID text from Wikipedia, CC BY-SA 4.0
Spectacled Owl
Pulsatrix perspicillata
The spectacled owl can range from 41 to 52.3 cm (16.1 to 20.6 in) in length. Mass in males can range from 453 to 1,075 g (1.00 to 2.37 lb), whereas females can weigh from 680 to 1,250 g (1.50 to 2.76 lb). 10 males from the nominate subspecies (P. p. perspicillata) were found to average 767 g (1.69 lb) while 8 females averaged 908 g (2.00 lb). It is unmistakable in most of its range (except with other Pulsatrix owls) with blackish brown upperparts, head and upper breast, white facial markings, and whitish to yellowish-ochre underparts.
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: Band-bellied Owl and Spectacled Owl.