Spot-bellied Eagle-Owl
Ketupa nipalensis
The spot-bellied eagle-owl is a large species of owl. It measures from 50 to 65 cm (20 to 26 in) in length. It is the sixth longest owl in the world on average and has the ninth longest wings of any living owl. The widely reported weight range for this species is 1.3 to 1.5 kg (2.9 to 3.3 lb), but this is probably towards the low end (possibly from K. n. blighi) or is possibly representative only of smaller males. Voice: This owl is noted for its strange, human-sounding call, and it has been suggested that it is the same as the cryptid known as ulama or "Devil Bird" in Sri Lanka. A local name is Maha Bakamuna ("large horned owl"). According to http://www.cryptozoology.com, in July 2001 it was confirmed that ulama description perfectly matches spot-bellied eagle-owl.
ID text from Wikipedia, CC BY-SA 4.0
Verreaux's Eagle-Owl
Ketupa lactea
Despite the alternative common name of giant eagle-owl, Verreaux's eagle-owl is not the largest owl or eagle-owl in the world. It is, however, a very large and powerful owl species. This species is both the largest owl found in Africa and the world's largest owl to occur in the tropics. Among all the world's owls, it is the fourth heaviest living owl, after Blakiston's fish owl (Ketupa blakistoni), the Eurasian eagle-owl (Bubo bubo) and the tawny fish owl (Ketupa flavipes). Voice: The call of the Verreaux's eagle-owl is the deepest of any extant owl species and one of the deepest bird calls in the world, averaging slightly deeper than the calls of the Blakiston's and brown fish owls (Ketupu zeylonensis). The calls of Eurasian eagle-owls are less deep but are possibly louder and farther carrying.
ID text from Wikipedia, CC BY-SA 4.0
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Spot-bellied Eagle-Owl and Verreaux's Eagle-Owl.