The owls of North America (north of Mexico)
Subtitle: all the species and subspecies illustrated in color and fully described.
By: Paintings and drawings by Karl E. Karalus. Text by Allan W. Eckert.
Contributors: Eckert, Allan W.
Publisher: Doubleday & Company, Inc.
Published: 1974
Place of publication: Garden City NY, USA
Language: eng
Format: Hardcover (slip-cased)
Number of pages: 278
Subjects: Owls.; Birds -- North America.
Description: "This collector's edition ... is the first edition after the limited edition and 3000 copies have been printed"
Notes: Includes Index.

Bibliography of principal sources: p. 268-273.