There are currently 247 known species of the Order Strigiformes which includes Barn-Owls and Owls. I have photographed 4 (1.6%) of these species of birds, all of the Family Strigidae.
Family: Tytonidae (Barn-Owls)
Family: Strigidae (Owls)
–Eastern Screech-Owl (Megascops asio)
–Great Horned Owl (Bubo virginianus)
–Barred Owl (Strix varia)
–Short-eared Owl (Asio flammeus)