SHAW, David; FLICK, Catherine. Are Resident Songbirds Stratified within the Canopy of a Coniferous Old-Growth Forest?. Selbyana, [S. l.], v. 20, n. 2, p. 324–331, 1999. Disponível em: https://journals.flvc.org/selbyana/article/view/120369. Acesso em: 15 aug. 2026.