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October 1983, Vol. 11, No. 5 Where We Went: A Pelagic Trip to Georges Bank, Sunday to Tuesday, 21-23 August 1983 George Gove 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 Robinson Breeding Success of Purple Martins in Eastern Massachusetts David Clapp Summary of Highest Count of Individuals recorded for Massachusetts Christmas Bird Counts, 1982 Janet Heywood and Robert H. Stymeist Field Records: July/August 1983 Field Notes From Here And There: Robert H. Stymeist, Dorothy Arvidson, Barbara Phillips, and Andrew Williams At a Glance Dorothy Arvidson ^ top