Abstract
No Abstract.
References
Collinson, J.M., D.T. Parkin, A.G. Knox, G. Sangster & L. Svensson (2008): Species boundaries in the Herring and Lesser Black-backed Gull complex. British Birds 101(7): 340–363.
Grimmett, R., C. Inskipp & T. Inskipp (2011): Birds of the Indian Subcontinent. 2nd edn. Oxford University Press and Christopher Helm, London. p. 172.
Koenraads, K.A., P. Lemmers, Hidde D. Hofhuis, Nieels de Nijs & Tsewang Namgail (2018): Avifauna of Ladakh: four new wetland bird species recorded. Birding ASIA 29: 53–58.
Olsen, K.M. & H. Larsson (2004): Gulls of Europe, Asia and North America. Reprinted with corrections. Christopher Helm, London.
Rasmussen, P.C. & J.C. Anderton (2012): Birds of South Asia: The Ripley Guide. 2nd edn. Smithsonian Institution, Washington, D.C., Michigan State University, Michigan, and Lynx Edicions, Barcelona.