What comes to mind when you imagine a “Rock Parrot”? Maybe this?
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Or this?
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Then it may come as a surprise to you that the actual Rock Parrot (Neophema petrophila) is a very subtle and small parrot.
Rock parrot
They are endemic to Australia and found along the western and southern coastal regions. Some of the best places to go to see this bird in the wild are Rottnest Island near Perth, Eyre Bird Observatory, Cape Leeuwin and the coast of Esperance.
Rock Parrot Range
MORE INFORMATION
They aren’t very noisy parrots so you will need luck and good local advice to see them. I found one video of them near Esperance.