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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
Birds have a natural instinct to protect themselves, but relatively few ways of doing so. Using that powerful beak to nip is a highly effective means of defense. Parrots are intelligent birds, and rapidly learn that biting causes people to withdraw. In behavioral terms, they learn biting is a rewarded with the very thing they want to happen: the person takes his hand away. The bird may even learn that by acting aggressively as a person approaches, this successfully stops them from coming closer.
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