Rhea (bird) Rhea (bird) The rheas () are large ratites (flightless birds without a keel on their sternum bone) in the order Rheiformes, native to South America, distantly related to the ostrich and emu. Most taxonomic authorities recognize two extant species: the greater or American rhea ("Rhea americana") and the lesser or Darwin's rhea ("Rhea pennata"). The IUCN lists the puna rhea ("Rhea tarapacensis") as a separate species. The IUCN currently rates the greater and puna rheas as near-threatened in their native ranges, while Darwin's rhea is of least concern. In addition, a feral population of the greater rhea in Germany appears
Love Is a Four Letter Word (album) of the heartbeat kind of takes precedence on this record. Medium-tempo tunes; which I love. It feels more like the pace of life. At least, based on my life and what I've been doing." On January 20, 2012, during a performance streamed live from the Bing Bar at the Sundance Film Festival, Mraz told the audience that the album's title was "Love Is a Four Letter Word". The album received favorable reviews. At Metacritic, which assigns a normalized rating out of 100 to reviews from mainstream critics, the album received an average score of 63, based on 10 reviews, which