Assessing behaviour of lesser black-backed gulls from the Ribble and Alt estuaries SPA using GPS tracking devices /
Scragg, Emily S.,author.
Thaxter, Chris B.,author.
Clewley, Gary D.,author.
Burton, N. H. K.,author.
British Trust for Ornithology,issuing body.
"October 2016."
"Report of work carried out by the British Trust for Ornithology on behalf of Natural England."
Spiral bound.
Includes bibliographical references (page 49-51).
Lesser black-backed gull