Rock parrot

Rock parrot.
The rock parrot (Neophema petrophila) is a species of grass parrot native to Australia. Described by John Gould in 1841, it is a small parrot 22 to 24 cm (8+3⁄4 to 9+1⁄2 in) long and weighing 50 to 60 g (1+3⁄4 to 2 oz) with predominantly olive-brown upperparts and more yellowish underparts. Its head is olive with light blue forecheeks and lores, and a dark blue frontal band line across the crown with lighter blue above and below. The sexes are similar in appearance, although the female tends to have a duller frontal band and less blue on the face. The preferred habitats are rocky islands and coastal dune areas from Lake Alexandrina in southeastern South Australia westwards across coastal South and Western Australia to Shark Bay. Unlike other grass parrots, it nests in burrows or rocky crevices mostly on offshore islands such as Rottnest Island. Seeds of grasses and succulent plants form the bulk of its diet. The species is not threatened, but it has suffered in the face of feral mammals.