KÄLLANDER, Hans. Barn Swallows Hirundo rustica using European Starlings Sturnus vulgaris as beaters. Ornis Svecica, Lund, Sweden, v. 8, n. 1–2, p. 40–42, 1998. DOI: 10.34080/os.v8.22959. Disponível em: https://journals.lub.lu.se/os/article/view/22959. Acesso em: 1 jul. 2024.