(September 18, 2021 at 4:37 pm)Angrboda Wrote:I don't doubt any of that, African grays are known to have remarkable intelligence, I've seen videos of Pepperberg's work. I will have to do some research concerning using English to communicate with other parrots. thanks for the post.Quote:Anecdotal evidence from those who care for African grays has long suggested that the parrots possess high innate intelligence. American animal behaviourist and psychologist Irene Pepperberg vindicated those observations with her studies of the cognitive abilities of African grays, using a bird named Alex and, later, additional specimens. Alex, who had been purchased from a pet store in Chicago in 1977, proved receptive to Pepperberg’s attempts to train him using positive behavioral reinforcement. Among his most significant accomplishments was proving unequivocally that parrots could associate sound and meaning, demolishing long-held theories that birds were capable of only mimicking human voices. At the time of his death in 2007, he could use English to count to six, correctly label objects of five shapes and seven colours, and differentiate groups of objects by colour, material, and shape. He further used English to communicate to other African grays in Pepperberg’s lab, variously encouraging and chastising their efforts at labeling and categorization.
Studies by other researchers have determined that African grays can use deductive reasoning to correctly choose between pairs of boxes—one containing food, the other empty—when they are shaken and that pairs of parrots are capable of working together to obtain a food reward. The intelligence of the species is thought to rank among the highest of nonhuman animals, including apes and cetaceans; some researchers have compared its reasoning abilities to those of a three- or four-year-old human child.
(Encyclopedia Brittania)
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evolutionary psychology
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evolutionary psychology - by evolcon - July 31, 2021 at 9:24 pm
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