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- proper n. A taxonomic genus within the family Emberizidae.
Sorry, no etymologies found.
Cassin's sparrow, Peucaea cassinii (formerly, Aimophila cassinii; protonym, Zonotrichia cassinii), also known as Cassin's (summer) finch, photographed at Katy Prairie Conservancy, Texas (USA).
Response: This is a Cassin's sparrow, Peucaea cassinii -- probably a male since the scrunched up eye indicates it is preparing to sing and males of this species are the singers.