NILSSON, Jan Eric. Blue Tit Parus caeruleus pair raises a Pied Flycatcher Ficedula hypoleuca nestling. Ornis Svecica, Lund, Sweden, v. 21, n. 1, p. 55–57, 2011. DOI: 10.34080/os.v21.22616. Disponível em: https://journals.lub.lu.se/os/article/view/22616. Acesso em: 8 may. 2024.