The Barn Owl
Bunn, D. S.; Warburton, A. B.; Wilson, R. D.
Illustrations by Willis, Ian
Owls of Europe
George Miksch Sutton Limited Edition Print: Mexican Bird Portraits: Northern Pigmy Owl
Sutton, George Miksch
The Barn Owl in the British Isles: Its Past, Present, and Future
Shawyer, Colin R.
Biology and Conservation of Small Falcons: Proceedings of the Hawk and Owl Trust Conference Hosted b
Nicholls, M.K.; Clarke, Roger
Boxes, Baskets and Platforms: Artificial Nest Sites for Owls and other Birds of Prey.
Dewar, Sue M.; Shawyer, Colin R.
The Long-eared Owl
Raptors of the Pacific Northwest
Bosakowski, Thomas; Smith, Dwight G.
North American Owls: Journey Through a Shadowed World.
Owls of the World.
Books on Hawks and Owls: An Annotated Bibliography
Olendorff, Richard R.
Raptors and Owls of Georgia (Caucasus region)
Galvez, Rafael Antonio; Gavashelishvili, Lexo; Javakhishvili, Zura