Gelochelidon nilotica groenvoldi (Mathews, 1912) Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Animalia phylum Chordata class Aves order Charadriiformes family Laridae genus Gelochelidon species Gelochelidon nilotica Name Homonyms Gelochelidon nilotica groenvoldi (Mathews, 1912)