Publication Date

1985

Document Type

Article

Comments

Published in Proceedings of Hawk Migration Conference IV, Hawk Migration Association of North America, 1985. For more information about HMANA, visit http://www.hmana.org/ .

Abstract

A technique is described for sampling sections of the sky individually during a raptor migration count to obtain an unbiased estimate of the true number of raptors passing. This allows an estimate to be made of the efficiency of raptor detection by an observer counting at the same location and time. Practical and statistical issues are addressed that must be understood for efficient use of the technique.

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