A continental study of Whistling Swans using neck collars

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William J L Sladen

Abstract

Using coded colour neck collars increased the resighting rate of Whistling Swans Cygnus c. columbianus as individuals to as much as 90%, compared with less than 5% by conventional band methods, even after a migration across N. America. Details of the continental marking protocol for four swan species are given. Much public interest and co-operation has resulted from the use of collars.

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How to Cite
Sladen, W. J. L. (1973). A continental study of Whistling Swans using neck collars. Wildfowl, 8–14. Retrieved from https://tidsskrift.dk/Wildfowl/article/view/154889
Issue
Wildfowl 24
Section
Artikler

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