The grassland yellow finch (Sicalis luteola) is a small passerine bird. Despite its name, it is not a finch, but is a seedeater. These were formerly united with the buntings and American sparrows in the Emberizidae, but are now known to be tanagers. The grassland yellow finch, as its name implies, is found in fields and other open grassland. The female lays 3 brown-speckled pale blue-green eggs in a grassy cup nest in tall grass, and several pairs may breed close to each other in suitable areas. Grassland yellow finches eat seeds and insects, and are usually seen in pairs or small groups.