TANSKANEN, Antti; YRJÖLÄ, Rauno A; BAUM, Ulrike; TANSKANEN, Sakari; ERIKSSON, Jörgen. How many observation days are needed to reliably describe bird migration?. Ornis Svecica, Lund, Sweden, v. 28, n. 1, p. 3–13, 2018. DOI: 10.34080/os.v28.19519. Disponível em: https://journals.lub.lu.se/os/article/view/19519. Acesso em: 25 nov. 2024.