This folder contains maps showing distribution and abundance of Puffinus griseus/Sooty Shearwater and Puffinus tenuirostris/Slender-billed Shearwater [Short-tailed Shearwater] based on at-sea observations for the Pacific Ocean Biological Survey Program. Because there is no explanatory sheet in the folder, the dates (February 1963 - August 1965), creator, and interpretation of the maps are based on
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