Aegolius (saw-whet owls) (4)
Asio (eared owls) (6)
Athene (burrowing owls) (3)
Bubo (eagle-owls and horned owls) (18)   (1)   (1)
Ciccaba (banded owls) (3)
Glaucidium (owlets and pygmy-owls) (26)   (1)
Gymnoglaux (Bare-legged owl) (1)
Heteroglaux (Owl) (1)   (1)
Jubula (Maned Owl) (1)
Ketupa (fish owls) (3)
Lophostrix (crested owl) (1)
Megascops (Owl) (22)
Micrathene (elf owl) (1)
Mimizuku (eagle-owl) (1)
Nesasio (fearful owl) (1)
Ninox (boobooks) (22)
Otus (scops-owls and screech-owls) (41)   (9)
Pseudoscops (Jamaican owl and striped owl) (2)
Ptilopsis (2)
Pulsatrix (spectacled owl and relatives) (3)
Pyrroglaux (Palau owl) (1)
Sceloglaux (laughing owl) (1)
Scotopelia (fishing-owls) (3)
Strix (earless owls) (15)
Surnia (hawk-owls) (1)
Uroglaux (Papuan boobook) (1)
Xenoglaux (long-whiskered owlet) (1)   (1)

(...) = Species count
(...) = Endangered count
(...) = Invasive count