? macronyx Stresemann, 1920 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Chordata class Aves order Passeriformes family Motacillidae genus Motacilla species Motacilla tschutschensis Name Homonyms ? macronyx Buckland, 1829 ? macronyx Stresemann, 1920 ? macronyx Thomas, 1894