TIERNEY, Niall; TIERNEY, Rachel A.; BJöRNSSON, Þorvaldur; KOLBEINSSON, Yann; TOWNSEND, Sunny E.; PETERSEN, Aevar. Status and distribution of the Common Shelduck Tadorna tadorna in Iceland, with special reference to the core area in Borgarfjörður. Wildfowl, [S. l.], p. 127–147, 2020. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/154572. Acesso em: 16 dec. 2025.