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