Published By US Fish and Wildlife Service, Department of the Interior
Issued over 9 years ago
US
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Summary
Description
This report summarizes ten studies that were conducted in the coastal waters of Port Frederick. By means of simultaneous boat and plane surveys, investigators hoped to determine: the proportion of various species of waterbirds detected and counted by boat survey crews, which are also detected and counted by air survey crews; the variability of both boat and plane surveys, and the degree of annual variation in the percentage of birds counted from the air; and the feasibility of applying correction factors to aerial survey data gathered over an extensive area of southeast Alaska. The results are discussed.