Owls -- Behavior -- Canada : Owls of the United States and Canada : a complete guide to their biology and behavior / text and photographs by Wayne Lynch
2007
1
13
Owls -- Behavior -- United States : Owls of the United States and Canada : a complete guide to their biology and behavior / text and photographs by Wayne Lynch
2007
1
14
Owls -- Bibliography. : Working bibliography of owls of the world : with summaries of current taxonomy and distributional status / by Richard J. Clark, Dwight G. Smith, and Leon H. Kelso ; with a foreword by Kai Curry-Lindahl