Cover
Front Matter
Bird Observer
Back Matter
Bird Observer
Contents
Why Go to Georges Bank and Hydrographer Canyon?
Wayne R. Petersen
Altitude of Bird Migration
Paul Kerlinger
Results of the 1982 Sparrow Migration Project
Michael Sharpe
Detecting Song Sparrows
Leif J. Robinson
Summary of Highest Counts of Individuals Recorded for Massachusetts Christmas Bird Counts, 1982
Janet L. Heywood and Robert H. Stymeist
Field Records: July 1983
George W. Gove, Robert H. Stymeist, and Lee E. Taylor
Field Records: August 1983
George W. Gove, Robert H. Stymeist, and Lee E. Taylor
Field Notes from Here and There
Robert H. Stymeist, Dorothy R. Arvidson, Barbara Phillips, and Andrew Williams
At a Glance
Dorothy R. Arvidson