Skyllberg, U. et al. 2009. Spring migration of the Taiga Bean Goose Anser f. fabalis along the “Western Flyway” in northern Sweden: numbers in 2003—2008 and timing in comparison with the “Central Flyway” in Finland. Ornis Svecica. 19, 4 (Oct. 2009), 199–214. DOI:https://doi.org/10.34080/os.v20.22645.