Pictorial Checklist of Colorado Birds: With Brief Notes on the Status of Each Species in Neighboring States of Nebraska, Kansas, New Mexico, Utah, and Wyoming by Alfred M. Bailey and Robert J. Niedrach, Denver Museum of Natural History, 1967. Oversized, 416-page hardcover with dust jacket, bound in brown cloth and illustrated in color and black white. Clean and firm with some rubbing on extremities, dust jacket tears at rear and previous owner's name inside front cover.
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