Assessing the habitat use of lesser black-backed gulls larus fuscus from the Bowland Fells SPA in 2017 and 2018 /
Clewley, Gary D.,author.
Scragg, Emily S.,author.
Green, R.M.,author.
Thaxter, C.B.,author.
Burton, N. H. K.,author.
British Trust for Ornithology.
"January 2019."