LIND, Henrik. Red-flanked Bluetail Tarsiger cyanurus singing like a Willow Tit Poecile montanus. Ornis Svecica, Lund, Sweden, v. 20, n. 1, p. 54–56, 2010. DOI: 10.34080/os.v20.22643. Disponível em: https://journals.lub.lu.se/os/article/view/22643. Acesso em: 8 may. 2024.