Standardization of roadside counts of columbids in Puerto Rico and on Vieques Island
By: by Frank F. Rivera-Milán
Series: Resource publication -- 197; Resource publication (National Biological Survey (U.S.)) -- 197
Publisher: U.S. Dept. of the Interior, National Biological Survey
Published: 1993
Place of publication: Washington, D.C
Language: eng
Number of pages: 26
Subjects: Columbidae; Pigeons
Notes: Includes bibliographical references (p. 25-26).