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Scops owls are typical owls in family Strigidae belonging to the genus Otus and are restricted to the Old World. Otus is the largest genus of owls with 59 species.Scops owls are colored in various brownish hues, sometimes with a lighter underside and/or face, which helps to camouflage them against the bark of trees.
Single calls made by the Flores scops owl are quick and sharp notes, which are translated as "UH!" sounds and last 1.5-2.5 seconds with a frequency of 0.6-0.9kHz. [6] Territorial calls are more prevalent among the Flores scops owls. They are described as a distinctive "short burst of loud, rapid staccato notes" and are translated as "UH-UH-UH ...
The Eurasian scops owl is 19–21 cm (7.5–8.3 in) in length with a wingspan of 47–54 cm (19–21 in). This is somewhat smaller than the little owl (Athene noctua). It perches upright and shows small ear-tufts. The plumage is predominantly grey-brown in colour, with a paler face, underparts and shoulder line.
The Pemba scops owl is a medium-sized scops-owl with short ear-tufts. There are two colour morphs, a brown morph which is mainly pale rufous-brown with light streaking on the head and faint barring on paler underparts and a rufous morph which is a bright, rich rufous, that is paler on the underwing coverts.
The taxonomy is in a state of flux but recent genetic studies have placed the Pemba scops owl closer to the clade containing the African scops owl Otus sengalensis, while the Mayotte scops owl is clearly separate from the remaining two.
Genus Scops was lumped into Otus in the early 20th century but in the early 21st century the current Megascops was adopted for what are now 23 species of screech owls. [3] [5] The long-tufted screech owl was at different times treated as a subspecies or a synonym of what is now the black-capped screech owl (Megascops atricapilla).
A very small scops owl which is heavily streaked and barred on its pale sandy-grey upperparts, paler underparts with darker shaft streaks and fine, dark barring. The plain facial disc has vague margins and the shoulder stripe is not as conspicuous as in other scops owls and are sandy-coloured. The ear-tufts are very small and the eyes are yellow.
The Mayotte scops owl has been considered to be conspecific with the Pemba scops owl (Otus pembaensis), the Anjouan scops owl (Otus capnodes), the rainforest scops owl and the Torotoroka scops owl (Otus madagascariensis under O. rutilus), but this species has now been split and the Mayotte scops owl is now regarded as its own species, mainly based on its very different call.