October 1973, Vol. 1, No. 5
What is a Bird Species?
J. T. Leverich
So What do We Count? (comment on "What is a Bird Species?")
Leif Robinson
Autumn Birding at Great Meadows
Peter Alden
Great Meadows National Wildlife Refuge
Berlin Heck
Lesser Black-backed Gull (Larus fuscus graellsii)
Wayne R. Petersen
The Bird Observer Summary for July/August 1973
Thayer's Gull (Larus thayeri)
J. T. Leverich
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