Tytonidae (Barn Owls)
- Barn Owl (Tyto alba)
- Eastern Screech-Owl (Megascops asio)
- Western Screech-Owl (Megascops kennicottii)
- Whiskered Screech-Owl (Megascops trichopsis)
- Cloud-forest Screech-Owl (Megascops nebulosus)
- Rufous-legged Owl (Strix rufipes)
- Great Horned Owl (Bubo virginianus)
- Snowy Owl (Bubo scandiacus)
- Northern Hawk-Owl (Surnia ulula)
Strigidae (True Owls)
- Eurasian Eagle-Owl (Bubo bubo)
- Blakiston's Fish Owl (Bubo blakistoni)
- Northern Spotted Owl (Strix occidentalis caurina)
- California Spotted Owl (Strix occidentalis occidentalis)
- Barred Owl (Strix varia)
- Long-eared Owl (Asio otus)
- Short-eared Owl (Asio flammeus)
- Stygian Owl (Asio stygius)
- Mottled Owl (Strix virgata)
- Tawny Owl (Strix aluco)
- Boreal Owl (Aegolius funereus)
- Northern Saw-whet Owl (Aegolius acadicus)
- Elf Owl (Micrathene whitneyi)
- Ferruginous Pygmy-Owl (Glaucidium brasilianum)
- Northern Pygmy-Owl (Glaucidium gnoma)
- Burrowing Owl (Athene cunicularia)
- Spotted Owlet (Athene brama)
- Little Owl (Athene noctua)
- Ural Owl (Strix uralensis)
- Great Grey Owl (Strix nebulosa)
- Northern Hawk Owl (Surnia ulula)