Bustnes, J. O., Helberg, M., & Bårdsen, B.-J. (2022). Reproductive success of threatened northern Lesser Black-backed Gulls (Larus fuscus fuscus) in relation to nest predation by Ravens (Corvus corax). Ornis Fennica, 99(1), 1–14. https://doi.org/10.51812/of.115081 (Original work published March 4, 2022)