Owls of the Eastern Ice: A Quest to Find and Save the World's Largest Owl [Paperback]
Slaght, Jonathan C.
Owls: Their Natural and Unnatural History
Sparks, John; Tony Soper
How to Spot an Owl
Sutton, Patricia; Sutton, Clay
Life History Evolution and Ecology in the Tawny Owl Strix aluco
Feathers of European Owls: Insights into Species Ecology and Identification
Snowy Owl: A Visual Natural History
Great Gray Owl: A Visual Natural History
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
Barn Owls: Evolution and Ecology. With Grass Owls, Masked Owls and Sooty Owls
Peterson Reference Guide to Owls of North America and the Caribbean
Nightwatchmen of Bush and Plain: Australian Owls and Owl-like Birds