North American Owls: Biology and Natural History [First Edition]
Johnsgard, Paul A.
Owls of the Eastern Ice: A Quest to Find and Save the World's Largest Owl
Slaght, Jonathan C.
Barn Owls: Evolution and Ecology. With Grass Owls, Masked Owls and Sooty Owls
Nightwatchmen of Bush and Plain: Australian Owls and Owl-like Birds
The Eagle Owl. Poyser Monographs
Penteriani, Vincenzo and Maria del Mar Delgado
The Owls of Southern Africa
Kemp, Alan C.
Owls of the World
The Great Gray Owl: Phantom of the Northern Forest
NERO, Robert W.
Neotropical Owls: Diversity and Conservation
Enriquez, Paula (Editor)
Hawks, Owls and Wildlife
Craighead, John J.; Frank C. Craighead
The House of Owls
The Enigma of the Owl: An Illustrated Natural History
Unwin, Mike and David Tipling; Foreword by Tony Angell