OLSSON, C. The use of grey alder Alnus incana by foraging Black Woodpeckers Dryocopus martius during winter. Ornis Svecica, Lund, Sweden, v. 30, p. 60–72, 2020. DOI: 10.34080/os.v30.22397. Disponível em: https://journals.lub.lu.se/os/article/view/22397. Acesso em: 24 sep. 2022.