Owl Birds

• Aegolius: saw-whet owls, four species
• Asio: eared owls, 6–7 species
• Athene: 2–4 species (depending on whether Speotyto and Heteroglaux are included or not)
• Bubo: horned owls, eagle-owls and fish-owls; paraphyletic with Nyctea, Ketupa and Scotopelia, some 25 species