[1]
Skyllberg, U. 2015. Numbers of Taiga Bean Geese Anseer f. fabalis utilizing the western and central flyways through Sweden during springtime 2007–2015. Ornis Svecica. 25, 3–4 (Oct. 2015), 153–165. DOI:https://doi.org/10.34080/os.v25.22542.