LUNDBERG, D. Social polygyny and suspected social polyandry in Grey Wagtails Motacilla cinerea. Ornis Svecica, Lund, Sweden, v. 10, n. 3–4, p. 123–127, 2000. DOI: 10.34080/os.v10.22870. Disponível em: https://journals.lub.lu.se/os/article/view/22870. Acesso em: 23 may. 2022.