Children (35 direct children, 987 direct and indirect children):
Mascarenotus
(tree size 3)
Mascarene owls
Bubo
(tree size 93)
Eagle-owls
Strix
(tree size 141)
Strix (bird)
Aegolius
(tree size 18)
Ketupa
(tree size 13)
Fish owl
Asio
(tree size 37)
Athene
(tree size 64)
Athene (bird)
Striginae
(tree size 115)
Asioninae
(tree size 8)
Otus
(tree size 163)
Scops owl genus
Surniinae
(tree size 88)
Ninox
(tree size 108)
Pulsatrix
(tree size 13)
Ninoxinae
Ornimegalonyx
(tree size 1)
Asphaltoglaux
Asphalt miniature owl
Jubula
(tree size 1)
Lophostrix
(tree size 5)
Micrathene
(tree size 5)
Elf owl
Pyrroglaux
(tree size 1)
Surnia
(tree size 4)
Uroglaux
(tree size 1)
Xenoglaux
(tree size 1)
Heteroglaux
(tree size 1)
Margarobyas
(tree size 1)
Nesasio
(tree size 1)
Psiloscops
(tree size 1)
Sceloglaux
(tree size 3)
Mimizuku
(tree size 1)
Oraristrix
(tree size 1)
Pseudoptynx
(tree size 4)
Scops
(tree size 38)
Syrnium
(tree size 15)
Spiloglaux
(tree size 2)
Nyctea
(tree size 1)