Assertion: cockatoo's feather | /r/CapableOf | turn crimson
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text: Around 5.41 foot (165 cm) Color Adults: Slate-black body with an entirely black tail; dark gray beak; a red facial patch devoid of feathers, which turns crimson when the bird is excited Juveniles: Similar to adults, pale yellow edges to underside feathers; shorter crests, white-tipped bill; and a white eye-ring Subspecies P. a. aterrimus