Fig. 1
From: GPS tracking reveals landfill closures induce higher foraging effort and habitat switching in gulls
Number of complete foraging trips for each individual GPS-tracked lesser black-backed gull breeding at Ribble and Walney in the years before and after closure of the focal landfills (Ribble = Arpley Tip; Walney = Jameson Road Landfill). Number of individual foraging trips ranged between a minimum of 1 and a maximum of 43. N denotes the total number of complete foraging trips recorded at each colony in each year