Perisoreus canadensis nigricapillus Ridgway, 1882 Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Animalia phylum Chordata class Aves order Passeriformes family Corvidae genus Perisoreus species Perisoreus canadensis Name Synonyms Perisoreus canadensis barbouri Brooks, 1920 Homonyms Perisoreus canadensis nigricapillus Ridgway, 1882