BUSTNES, J. O.; HELBERG, M.; BÅRDSEN, B.-J. Reproductive success of threatened northern Lesser Black-backed Gulls (Larus fuscus fuscus) in relation to nest predation by Ravens (Corvus corax). Ornis Fennica, [S. l.], v. 99, n. 1, p. 1–14, 2022. DOI: 10.51812/of.115081. Disponível em: https://ornisfennica.journal.fi/article/view/115081. Acesso em: 16 aug. 2022.