Bias in the Collection of Mussel Shells Opened by Oystercatchers: a Reply to Speakman

Authors

J. T. Cayford

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Recommended Citation

Cayford, J. T. (1990) "Bias in the Collection of Mussel Shells Opened by Oystercatchers: a Reply to Speakman," Wader Study Group Bulletin: Vol. 58 : No. 1 , Article 13.
Available at: https://digitalcommons.usf.edu/wsg_bulletin/vol58/iss1/13