Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Butler's Corella (Cacatua pastinator butleri) is a medium-sized white cockatoo endemic to Western Australia. It is one of two subspecies of the Western Corella.Butler's Corella has mainly white plumage with a distinct white crest. The undersides of the wings and tail are pale yellow. The feathers between the eye and beak are deep salmon-pink, as are the bases of the feathers on the head and underparts. The eye is surrounded by a broad grey-blue eye-ring. The white plumage is often stained with soil because of the birds' foraging activities. The corellas range from 40–48 cm in length and 600–750 g in weight. They are very similar in appearance to Muir's Corella, the nominate subspecies of the Western Corella.

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