sentences:  The species has suffered in the face of feral mammals; although its population is declining, it is considered to be a least-concern species by the International Union for Conservation of Nature (IUCN).The rock parrot was described by the English ornithologist John Gould in 1841 as "Euphema petrophila", its specific name "petrophila" derived from the Greek "petros"/πετρος 'rock' and "philos"/φιλος 'loving'.The author's specimen was one of fifty new bird species presented before the Zoological Society of London.