The greater rhea (Rhea americana) is a species of flightless bird native to eastern South America. Other names for the greater rhea include the grey, common, or American rhea; ema (Portuguese); or ñandú (Guaraní and Spanish). One of two species in the genus Rhea, in the family Rheidae, it inhabits a variety of open areas, such as grasslands, savanna or grassy wetlands. Weighing 20–27 kilograms (44–60 lb), the greater rhea is the largest native bird in the Americas.[4] In the wild, the greater rhea has a life expectancy of 10.5 years.[5] It is also notable for its reproductive habits, and for the fact that a population has established itself in Northern Germany in recent years.[6] The species is listed as Near Threatened by the IUCN.