The turkey-sized, noisy, fruit-feasting guans are arguably one of the strangest wildlife sightings in the tropical forests of Central and South America. Ancient animals, these birds are members of the Cracidae family—which also include equally-odd currasows and chachalacas—and are actually distantly related to megapode, or mound-building, birds of Australiasia. A new study in mongabay.com’s open-access journal Tropical Conservation Science looks at a particularly endangered guan: the Cauca gaun (Penelope perspicax).