Fig. 6

Estimates and 95 % confidence intervals from resource selection models for all GPS-tracked lesser black-backed gulls breeding at Ribble and Walney before (yellow) and after (purple) focal landfill closure. Models estimate the probability that a given location point represents a real GPS location rather than a pseudo-absence in response to five main foraging habitat categories (agriculture, coastal, landfill, marine, urban) – i.e. habitat selection - the probability that gulls are using that habitat relative to its availability. A probability of 0.50 indicates that birds used habitat in proportion to its availability whilst values of > 0.50 indicate selection for that habitat type at the colony-level