Native
Introduced
Reintroduced
Vagrant
Native (uncertain presence)
Regionally extinct vagrant
Regionally extinct
Synonyms : 灰蓝莺雀 (cn), zelenáček břidlicový (cz), Schiefervireo (de), Mørk Vireo (dk), Slaty Vireo (en), Vireo pizarroso (es), meksikonvireo (fi), Vireo ardesia (it), シロアゴモズモドキ (jp), Leigrijze Vireo (nl), Skifervireo (no), wireonek stalowy (pl), Шиферный виреон (ru), Skiffervireo (se), vireo bridlicový (sl)
Slaty Vireo