He was told he was gray. He learned it after it was repeated to him six times.
Alex the parrot
He was brought from a pet shop in 1977 by Irene Pepperberg, a scientist, animal psychologist and professor at Brandeis University and Harvard University. She wanted to study whether birds can understand complex problems related to language.
For instance, when he was shown keys in different sizes, shapes, and colors, Alex had identified the object. he experiment lasted for 30 years until Alex’s death in 2007. His death was a surprise for everyone as he was in good health at the time and African gray parrots live an average life of sixty years.
African gray parrots, three-weeks old
She further said that he didn’t even reach his full potential by the time he died. She concluded birds are animals with creative potential for using words.
Wasn’t he great?