Regulus calendula obscurus Ridgway, 1876 Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Animalia phylum Chordata class Aves order Passeriformes family Regulidae genus Regulus species Regulus calendula Name Synonyms Corthylio calendula obscurus (Ridgway, 1876) Homonyms Regulus calendula obscurus Ridgway, 1876