Stereotyped behavior Then there's "Hsiao Pa," who mumbles to herself whenever she feels emotionally unsettled. She is a salmon-crested cockatoo who has lost the ability to fly. Her former owner kept her in a cage that was too small, so that her muscles atrophied and her spine became misshapen.
刻板行為另一隻情緒不穩時就會喃喃自語的「小芭」，是隻空有翅膀卻失去飛行能力的「鮭冠鳳頭鸚鵡」，由於當初飼主所用的籠子太小，導致「小芭」肌肉萎縮、脊椎側彎。