Abstract
The daily locations of socially active male grey seals were recorded during three successive breeding seasons on North Rona (Outer Hebrides, Scotland). Areas of occupancy were defined for 38 individually identified males. Socially active males showed a high degree of site fidelity, determined from the overlap of areas and distance moved by individuals between seasons. The degree of site fidelity displayed by individuals was not related to measures of individual mating success, dominance, date of arrival to the colony, length of stay at the colony or changes in these values between seasons. As both male and female grey seals display site fidelity on N. Rona, individual recognition of potential opponents and mates is possible. There is also potential for the production of full sibling offspring in successive seasons.
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