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I conducted 14-22 waterbird and raptor censuses each year
From 25 April through 30 October 1992, I conducted 14
Version 1.0
This article includes 609 observations, 531 of which were by
This is a continuation of Faxon and Bayer (1991), which
The monthly occurrence of subspecies for 18 terrestrial
This is a continuation of Bayer (1992), which gave 1849-1990