What an Owl Knows : The New Science of the World's Most Enigmatic Birds
New York: Penguin Press, 2023. Later printing. Hardcover, in dust jacket.
New York: Penguin Press, 2023. Later printing. Hardcover, in dust jacket.
New York: Penguin Press, 2023. First edition, first printing. Hardcover, in dust jacket.
Eyre & Sottiswood, 1944. First edition, first printing. Hardcover in dust jacket.
Oxford, 2013. Later printing. Hardcover in dust jacket.
New York: Abbeville, 1981. Full page color illustrations. Later printing. Quarter black leather backed cream cloth boards, gilt spine title. Lacking publisher's slipcase.
Austin: University of Texas Press, 1993. Full color reproductions. First edition, first printing. Hardcover in dust jacket. This copy is one of 1500 copies.
New York: North Point Press, 2004. First edition, first printing. Hardcover in dust jacket.
New York: Basic Books, 2003. First edition, first printing. Hardcover in dust jacket.
Universe Publishing, 2001. First edition, first printing. Hardcover in dust jacket.
Yale U. Press, 2003. Illus. with Line drawings by Sarah Wroot. First edition, first printing. Hardcover in dust jacket.
Norwalk, CT: Easton Press, 1992. Collector's Edition. Full red leather, decoratively gilt. Part of "The Library of Great Lives" series. Foreword by Roger Tory Peterson. Includes "The Library of Great Lives" note laid in.
Lyons, 2001. First edition, first printing. Hardcover, in dust jacket.
Texas A&M University Press, 1994. First edition, first printing. Hardcover in dust jacket.
Magna, 1994. Peter Hayman. Later printing. Hardcover in dust jacket.
New York: A & W Publishers, 1981. Full page color illustrations by John Gould. Later printing. Hardcover, in dust jacket.
Sierra Club, 1997. First edition, first printing. Hardcover in dust jacket.
London: DK (Dorling Kindersley), 1993. Later printing. Hardcover, in dust jacket.
Boulder: U. Press of Colorado, 2015. Color photographs by Thomas D. Mangelsen. First edition, first printing. Matte, french-fold wraps (paperback original).
Smithsonian, 1993. First edition, first printing. Hardcover in dust jacket.
Tilbury House, 1997. First edition, first printing. Hardcover, in dust jacket. Signed by Salmansohn on the half title.
Harcourt Brace Jovanovich, 1988. First edition, first printing. Hardcover in dust jacket.
New York: Grove Press, 2020. First edition, first printing. Hardcover in dust jacket.
Cambridge, 1955. First edition, first printing. Hardcover, in dust jacket. Cambridge Monographs in Experimental Biology, No. 3.
London: Square Peg, 2019. Later printing. Hardcover, in dust jacket.
New York: Simon & Schuster, 2011. First edition, first printing. Hardcover, in dust jacket.