Assertion: grey parrot | /r/HasProperty | psittacus erithacus
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Source sentences:
text: The African gray parrot (Psittacus erithacus) is unsurpassed as a talker; the male can precisely echo human speech.
text: The African grey parrot (Psittacus erithacus) is one of the best at this and one named Alex (1965-2007) was reported to be the world's smartest parrot.
text: The grey parrot (Psittacus erithacus), also known as the Congo grey parrot, Congo African grey parrot or African grey parrot, is an Old World parrot in the family Psittacidae.