Test Your Knowledge
Then Alex switched to the number seven: “Ssse ... none.”
“That’s good, Alex,” Pepperberg said. “Seven. The number is seven.”
“Sse ... none! Se ... none!”
“He’s practicing,” she explained, when I asked what Alex was doing. “That’s how he learns. He’s thinking about how to say that word, how to use his vocal tract to make the correct sound.”
It sounded a bit mad, the idea of a bird willingly engaging in lessons and learning. But after listening to and watching Alex, I found it difficult to argue with Pepperberg’s explanation for his behaviors. She wasn’t handing him treats for the repetitious work or rapping him on the claws to make him say the sounds.
“He has to hear the words over and over before he can correctly imitate them,” Pepperberg said, after she and her assistants had pronounced “seven” for Alex a good dozen times in a row. “I’m not trying to see if Alex can learn a human language,” she added. “That’s not really the point. My plan always was to use his imitative skills to get a better understanding of avian cognition.”
In other words, because Alex was able to produce a close approximation of the sounds of some English words, Pepperberg could ask him questions about a bird’s basic understanding of the world. She couldn’t ask him what he was thinking about, because that was beyond his vocabulary, but she could ask him about his understanding of numbers, shapes, and colors. To demonstrate, Pepperberg carried Alex on her arm to a tall wooden perch in the middle of the room. She then retrieved a green key and a small green cup from a basket on a shelf. She held up the two items to Alex’s eye.
“What’s same?” she asked. She looked at Alex nose-to-beak.