sentences:  The rock parrot was included in Gould's fifth volume of "Birds of Australia", using specimens obtained at Port Lincoln in South Australia and from collector John Gilbert in Western Australia.Gilbert stated that at the time of English colonisation the species was common on cliff faces on offshore islands, including Rottnest, near the western port of Fremantle, the nests in almost inaccessible locations.The Italian ornithologist Tommaso Salvadori defined the new genus "Neophema" in 1891, placing the rock parrot within it and giving it its current scientific name "Neophema petrophila".