KARLSSON, Thomas. Foraging of Black-headed Gull Chroicocephalus ridibundus during the breeding season. Ornis Svecica, Lund, Sweden, v. 27, n. 1, p. 3–9, 2017. DOI: 10.34080/os.v27.19548. Disponível em: https://journals.lub.lu.se/os/article/view/19548. Acesso em: 20 apr. 2024.