Bensch S, Karlsson T, Källander H, Lager R. Predation and disturbance of Black-headed Gull Larus ridibundus colonies. Ornis Svec [Internet]. 1996 Apr. 1 [cited 2024 Jul. 18];6(1–2):67-73. Available from: https://journals.lub.lu.se/os/article/view/22998