Firefly Books identifies Owen Deutsch as the author of The Bird Photography Handbook. The publisher describes the book as a guide to photographing birds, covering equipment, field technique, and practical methods for bird photography. This source establishes Deutsch as a photographer-author whose primary published work focuses on birds as photographic subjects. It is a key biographical source because it confirms his authorship of a major instructional book in bird photography and anchors his photographic reputation in a direct publisher record.

The official Owen Deutsch Photography website is the artist-controlled online portfolio for Owen Deutsch. It presents galleries of his bird and wildlife photographs and serves as a direct source for verifying his authorship of the images and his ongoing photographic practice. The site is selected as a biographical record because it identifies the photographer and provides access to representative work, though it is not an extensive written biography.