Owls of North America /

The owls of North America (north of Mexico) : all the species and subspecies illustrated in color and fully described /
by: Karalus, Karl E.
Published: (1974)

Guide to owl watching in North America /
by: Heintzelman, Donald S.
Published: (1984)

Jeffrey Whiting's owls of North America.
by: Whiting, Jeffrey, 1972-
Published: (1997)

The owl book /
by: Storms, Laura
Published: (1983)

Voices of North American owls.
Published: (2006)

The book of owls.
by: Walker, Lewis Wayne

Owls by day and night /
by: Tyler, Hamilton A.
Published: (1978)

How to spot an owl /
by: Sutton, Patricia, 1951-
Published: (1994)

Sexual size dimorphism in hawks and owls of North America /
by: Snyder, Noel F. R.
Published: (1976)

Owls : a guide to the owls of the world /
by: König, Claus, 1933-
Published: (1999)

Owls /
by: Angell, Tony
Published: (1974)

Barn owls /
by: Epple, Wolfgang
Published: (1992)

The barn owl /
by: Kitchen, Bert
Published: (1999)

Owls of the world /
by: König, Claus, 1933-
Published: (2008)

About owls /
by: Garelick, May
Published: (1975)

Small mountain owls /
by: Rashid, Scott
Published: (2009)

Owls! : strange and wonderful /
by: Pringle, Laurence, 1935-
Published: (2016)

Owl /
by: Taylor, Kim, 1933-
Published: (1992)

The magic of owls /
by: Stuart, Jozefa
Published: (1977)

Owls /
by: Mead, C. J.
Published: (1987)

Owls /
by: Zim, Herbert S. (Herbert Spencer), 1909-1994
Published: (1950)

Owls /
by: Taylor, Marianne, 1972-
Published: (2012)

All about owls /
by: Arnosky, Jim
Published: (1995)

Biography of a snowy owl /
by: Hopf, Alice Lightner, 1904-
Published: (1979)

The little owl : conservation, ecology and behavior of Athene noctua /
by: Nieuwenhuyse, Dries van
Published: (2008)

Owls : their natural and unnatural history /
by: Sparks, John
Published: (1979)

Owls : an introduction for the amateur naturalist /
by: Alcorn, Gordon Dee
Published: (1986)

Owls of the United States and Canada : a complete guide to their biology and behavior /
by: Lynch, Wayne
Published: (2007)

Owls of the world ; their evolution, structure, and ecology /
Published: (1973)

Owls of the Northern Hemisphere /
by: Voous, K. H. (Karel Hendrik)
Published: (1989)

Eric Hosking's owls /
by: Hosking, Eric John
Published: (1982)

Owls and their homes /
by: Gibson, Deborah Chase
Published: (1999)

The barn owl /
by: Bunn, D. S. (Derek S.)
Published: (1982)

Field guide to owls of California and the West /
by: Peeters, Hans J.
Published: (2007)

Owling : enter the world of the mysterious birds of the night /
by: Wilson, Mark Chester, 1959-
Published: (2019)

Neotropical owls : diversity and conservation /
Published: (2017)