Greater Rhea

Rhea americana

IUCN: Near Threatened

Taxonomy

Order
Rheiformes
Family
Rheidae
Genus
Rhea
eBird Code
grerhe1

Subspecies (5)

  • Rhea americana albescens

    pampas of Argentina southward to Río Negro

  • Rhea americana americana

    central and northeastern Brazil (to Rio Grande do Norte) to southern Brazil (southward to São Paulo and Paraná)

  • Rhea americana araneipes

    western Brazil (southern Rondônia and Mato Grosso), eastern Bolivia, and western Paraguay (Chaco region)

  • Rhea americana intermedia

    far southern Brazil (Rio Grande do Sul) and Uruguay

  • Rhea americana nobilis

    eastern Paraguay (east of the Río Paraguay)

Data Sources

Taxonomy data from AviList 2025.