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Grassland Sparrow
Ammodramus humeralis
Yellow-browed Sparrow
Ammodramus aurifrons
Bridled Sparrow
Peucaea mystacalis
Olive Sparrow
Arremonops rufivirgatus
Cassin's Sparrow
Peucaea cassinii
Chaco Sparrow
Rhynchospiza strigiceps
Cinnamon-tailed Sparrow
Peucaea sumichrasti
Green-backed Sparrow
Arremonops chloronotus
Black-striped Sparrow
Arremonops conirostris
Stripe-headed Sparrow
Peucaea ruficauda