Black-and-white Owl
Strix nigrolineata
The black-and-white owl is a medium-sized owl with a round head and no ear tufts. It is between 35 and 40 cm in length and weigh between 400 and 535 grams. As for most owl species, females are usually bigger than males with an average weight of 487 g and 418 g respectively. It has a striped black-and-white breast, belly, and vent. With the exception of a black-and white striped collar, the upperparts from the crown to the tail are a sooty black. The facial disc is mostly sooty black, with white "eyebrows" that extend from the bill to the collar. Voice: Its call consists of a series of rapid, guttural, low calls, followed by a short pause and a low, airy call and a faint, short hoot. Occasionally, it is shortened to just the last two notes, leaving out the opening series. Moreover, the female's call usually sounds louder than the male's and individuals make fainter "hoots" near their nest.
ID text from Wikipedia, CC BY-SA 4.0
Crested Owl
Lophostrix cristata
The crested owl is a medium-sized owl with a total length ranging from 38 to 43 cm and weighs 425 to 620 grams. It is distinctively recognized with its very long white or buff colored ear tufts and its prominent whitish eyestripe that extends into the ear tufts. The Iris varies from yellow to brown mottled with rufous. The bill is generally yellow or darker and its toes are a pale grey-brown colour. The mesoptile (down feathers) of juveniles is whitish. Their facial disk is dark, and the ear tufts are short. The flight and tail feathers are similar to adults. Voice: The characteristic call of the crested owl is usually given when they are perched high in the canopy. The call is low but far carrying Gooooorrr or Broorrr. The song resembles a frog-like croak and can be mistaken by the call of the Bare-Throated Tiger Heron. The song begins with a stuttering rattle k-k-kkkk, which accelerates to a deep, rough and guttural krrrrrao.
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: Black-and-white Owl and Crested Owl.