Description
Item Description:"Reprinted April 1997"--Page 2 of cover.
Includes in part papers presented at the Symposium on Monitoring Bird Population Trends by Point Counts, held November 6-7, 1991 in Beltsville, Maryland, in response to the need for standardization of methods to monitor bird populations by point counts.
Physical Description:1 online resource (iv, 181 pages) : illustrations, maps
Bibliography:Includes bibliographical references (pages 177-181).