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Maps of duck locations over a 24-hour period in the CA Central Valley

By Western Ecological Research Center (WERC)
Maps of female gadwall and northern pintail locations over a 24-hour period, with locations recorded by GPS.
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Detailed Description

Maps of female gadwall (left) and northern pintail (right) locations over a 24-hour period, with locations recorded by GPS transmitters every 30-minutes in the California Central Valley.

Sources/Usage

Public Domain.