Children (11 direct children, 1136 direct and indirect children):
Strigidae
(tree size 987)
The true owl family
Tytonidae
(tree size 125)
Barn owls & bay owls
Sophiornithidae
(tree size 1)
Steatornithidae
(tree size 5)
Caprimulgi
(tree size 1)
Strigi
(tree size 2)
Palaeoglucidae
(tree size 1)
Protostrigidae
(tree size 2)
Heterostrigidae
Ogygoptyngidae
(tree size 1)
Bradycnemidae