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Colonial waterbird survey counts

Published by U.S. Fish and Wildlife Service | Department of the Interior | Catalog Last Checked: March 06, 2026 at 07:12 AM | Dataset Last Updated: February 05, 2026 at 12:00 AM
Raw and summarized count data from annual colonial water survey conducted at West Sister Island NWR. Breeding pair estimates were calculated for all years using 3 different methods.

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