Alex Studies: Cognitive and Communicative Abilities of Grey Parrots 1960s sci-fi have gathered them with the

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Alex Studies: Cognitive and Communicative Abilities of Grey Parrots 1960s sci-fi have gathered them with theAuthor Contributor(s): Pepperberg, Irene Maxine Publisher: Harvard University Press Date: 04 30 2002 Binding: Paperback Condition: NEW Can a parrot understand complex concepts and mean what it says? Since the early 1900s, most studies on animal human communication have focused on great apes and a few cetacean species. Birds were rarely used in similar studies on the grounds that they were merely talented mimics that they were, after all, "birdbrains."