GRENMYR, U. Ringing recoveries of Goldcrests Regulus regulus in Sweden: seasonal occurrence, sex and age distribution. Ornis Svecica, Lund, Sweden, v. 10, n. 3–4, p. 129–139, 2000. DOI: 10.34080/os.v10.22871. Disponível em: https://journals.lub.lu.se/os/article/view/22871. Acesso em: 23 may. 2022.