'Nonsense' orientation of Pintail, Wigeon and Mallard from Nacton, Suffolk

G V T Matthews, D L Revett

Abstract


The 'nonsense' orientation of Pintail Anas acuta, Wigeon, A. penelope and Mallard A. platyrhnchos caught at Nacton Decoy, Suffolk, was observed in a series of releases. The mean orientations were PintailSSW, Wigeon-SSW, and MallardS. Mallard were also released carrying small bar magnets but their orientation was not disrupted.

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