The Owls of Southern Africa
Kemp, Alan C.
Lady Grayl: Owl With a Mission
Nero, Robert W.
Owls of the World
Hawks, Owls and Wildlife
Craighead, John J.; Frank C. Craighead
Spotted Owls: Shadows in an Old-Growth Forest
Cannings, Richard & Jared Hobbs
The Great Gray Owl: Phantom of the Northern Forest
NERO, Robert W.
North American Owls: Biology and Natural History [First Edition]
Johnsgard, Paul A.
The Eastern Screech Owl: Life History, Ecology and Behavior of Rural and Suburban Populations
Gehlbach, Frederick R.
Owls of the Northern Hemisphere
Neotropical Owls: Diversity and Conservation
Enriquez, Paula (Editor)
Great Horned Owlets Rescue: Where There's a Will, There's a Way
Undiscovered Owls: A Sound Approach Guide [Damaged]
The House of Owls
The Enigma of the Owl: An Illustrated Natural History
Unwin, Mike and David Tipling; Foreword by Tony Angell
Owl: A Year in the Lives of North American Owls
Owls of North America [PB]
Travels of an American Owl: A Satire
Johnson, Virginia W.
Barn Owl: Birds of North America species account
Carl D. Marti.
Flammulated Owl: Birds of North America species account
D. Archibald McCallum.
Western Screech-Owl: Birds of North America species account
Richard J. Cannings and Tony Angell.
Eastern Screech-Owl: Birds of North America species account
Frederick R. Gehlbach.