Myiarchus cinerascens pertinax S.F.Baird, 1860 Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Animalia phylum Chordata class Aves order Passeriformes family Tyrannidae genus Myiarchus species Myiarchus cinerascens Name Homonyms Myiarchus cinerascens pertinax S.F.Baird, 1860