North American bird declines are greatest where species are most abundant. - Johnston, Alison; Rodewald, Amanda D.; Strimas-Mackey, Matt; Auer, Tom; Hochachka, Wesley M.; Stillman, Andrew N.; Davis, Courtney L.; Ruiz-Gutierrez, Viviana; Dokter, Adriaan M.; Miller, Eliot T.; Robinson, Orin; Ligocki, Shawn; et al. (Science, 2025)