 Occasionally a peregrine falcon disturbs nesting kittiwakes as it swoops by the cliff edges.Lesser numbers of lesser black-backed gull ("Larus fuscus"), great black-backed gull ("Larus marinus") and common shag ("Phalacrocorax aristotelis") are also to be found.In the North Sea waters at the base of the cliffs can be found certain marine mammals, including the common seal ("Phoca vitulina") and the grey seal ("Halichoerus grypus").