There are currently 247 known species of the Order Strigiformes which includes Barn-Owls and Owls. I have photographed 14 (5.7%) of these species of birds, all of the Family Strigidae.
Family: Tytonidae (Barn-Owls)
–American Barn Owl (Tyto furcata)
Family: Strigidae (Owls)
–Eastern Screech-Owl (Megascops asio)
–Great Horned Owl (Bubo virginianus)
–Barred Owl (Strix varia)
–Short-eared Owl (Asio flammeus)
–White-throated Screech-Owl (Megascops albogularis)
–Great Gray Owl (Strix nebulosa)
–Boreal Owl (Aegolius funereus)
–Snowy Owl (Bubo scandiacus)
–Northern Hawk Owl (Surnia ulula)
–Burrowing Owl (Athene cunicularia)
–Long-eared Owl (Asio otus)
–Little Owl (Athene noctua)
–Eurasian Scops-Owl (Otus scops)