Test Your Knowledge
Under Pepperberg’s patient tutelage, Alex had learned how to use his vocal tract to imitate about 100 English words, including the sounds for all of the foods she offered him, although he called an apple a “ban-erry.”
“Apples may taste a little bit like bananas to him, and they look a little bit like cherries, so Alex made up that word for them,” Pepperberg said.
Alex could also count to six and was learning the sounds for seven and eight.
“I’m sure he already knows both numbers,” Pepperberg said. “He’ll probably be able to count to 10, but he’s still learning to say the words. It takes far more time to teach him certain sounds than I ever imagined.”
Alex was also learning to say “brown.” As a kind of learning aid for “brown,” Pepperberg placed a small wooden block painted chocolate brown next to Alex.
After breakfast, Alex preened again, keeping an eye on the flock. Every so often, he used his claw to pick up the toy block and held it aloft as if showing it to everyone in the room. Then he opened his beak: “Tell me what co-lor?”
“Brown, Alex. The color is brown,” Pepperberg, Levin, and the other assistant replied in a kind of singsong unison. They stretched out brown into almost full two syllables, emphasizing the “br” and “own.”
Alex listened silently. Sometimes he tried part of the word: “rrr ... own.” Other times, he again held up his block and repeated his question: “What co-lor?” And the trio of humans replied together: “Brown, Alex. The color is brown.”