Género da Coruja-das-neves

Brown Fish Owl Ketupa zeylonensis becomes Bubo zeylonensis (Wink & Heidrich 1999)
Snowy Owl Nyctea scandiaca becomes Bubo scandiacus (Wink & Heidrich 1999)
A.J. Helbig Both Brown Fish Owl and Snowy Owl are derived within Bubo (Wink & Heidrich 1999; Wink & Heidrich 2000), thus subsumed in that genus. Furthermore, osteology does not support the separation of Nyctea from Bubo (Ford 1967). Some differences between Nyctea and Bubo are believed to be adaptations to the Arctic environment. The generic change of Snowy Owl is also supported by the AOU (Banks et al. Auk 120 (3): 922-931, 2003). Chewing lice (Phthiraptera) of the species Strigiphilus ketupae occur in Brown Fish Owl, Philippine Eagle-Owl B. philippensis and Barred Eagle-Owl B. sumatranus; furthermore, Brown Fish Owl and Barred Eagle-Owl are both hosts to Colpocephalum turbinatum, possibly supporting a close relationship between these owls (Dalgleish 2003). The bare legs of fish owls are conspicuous, and this feature is usually correlated with their fish-catching habits; but certainly other owls that are not known to catch fish present much the same character.