Occurrence and correlation between the numbers of Black-headed Gull Chroicocephalus ridibundus and Yellow-legged Gull Larus michahellis on Kolut fish ponds (Serbia). Riv Ital Ornitol [Internet]. 2015 Mar. 20 [cited 2025 Jul. 11];84(1):37-40. Available from: https://sisn.pagepress.org/rio/article/view/218