DALE, S. Ecology of a Two-barred Crossbill (Loxia leucoptera) irruption to Norway in 2019–20: altitudinal migration and interspecific habitat differences. Ornis Norvegica, [S. l.], v. 44, p. 19–30, 2021. DOI: 10.15845/on.v44i0.3265. Disponível em: https://boap.uib.no/index.php/ornis/article/view/3265. Acesso em: 23 apr. 2024.