Abstract Previous reports have documented attacks by Peregrine Falcons Falco peregrinus on seabirds as large as Manx Shearwaters Puffinus puffinus.The examples pre- sented here demonstrate that Peregrines will also readily attack Balearic P. mauretanicus and Sooty Shearwaters P. griseus. The regular predation of Balearic Shearwaters at breeding colonies is particularly noteworthy given the


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