marine gulls and this short paper is intended t o give some idea of the size range and sex differences within a single population of Great Black-backed Gulls Larus marinus. T h e individuals concerned were collected during a gull control programme on Skokholm and Skomer Islands, Pembrokeshire. Measurements were obtained according to the methods used by Witherby et al. (1938) and the birds were all...
This article is only available to registered users.
To read more, please log in or purchase a subscription.
