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Alex, a Parrot Who Had a Way With Words, Dies

Susan Notes:

My immediate response is "But could he DIBEL?"

But that's a cheap shot. This is a rather touching account of some remarkable research. Wouldn't we all like those with whom we work to leave us with such a parting shot?

By Benedict Carey

He knew his colors and shapes, he learned more than 100 English words, and with his own brand of one-liners he established himself in TV shows, scientific reports, and news articles as perhaps the worldâs most famous talking bird.

But last week Alex, an African Grey parrot, died, apparently of natural causes, said Dr. Irene Pepperberg, a comparative psychologist at Brandeis University and Harvard who studied and worked with the parrot for most of its life and published reports of his progress in scientific journals. The parrot was 31.

Scientists have long debated whether any other species can develop the ability to learn human language. Alexâs language facility was, in some ways, more surprising than the feats of primates that have been taught American Sign Language, like Koko the gorilla, trained by Penny Patterson at the Gorilla Foundation/Koko.org in Woodside, Calif., or Washoe the chimpanzee, studied by R. Allen and Beatrice Gardner at the University of Nevada in the 1960s and 1970s.

When, in 1977, Dr. Pepperberg, then a doctoral student in chemistry at Harvard, bought Alex from a pet store, scientists had little expectation that any bird could learn to communicate with humans. Most of the research had been done in pigeons, and was not promising.

But by using novel methods of teaching, Dr. Pepperberg prompted Alex to learn about 150 words, which he could put into categories, and to count small numbers, as well as colors and shapes. âThe work revolutionized the way we think of bird brains,â said Diana Reiss, a psychologist at Hunter College who works with dolphins and elephants. âThat used to be a pejorative, but now we look at those brains â" at least Alexâs â" with some awe.â

Other scientists, while praising the research, cautioned against characterizing Alexâs abilities as human. The parrot learned to communicate in basic expressions â" but it did not show the sort of logic and ability to generalize that children acquire at an early age, they said. âThereâs no evidence of recursive logic, and without that you canât work with digital numbers or more complex human grammar,â said David Premack, a professor emeritus of psychology at the University of Pennsylvania.

Dr. Pepperberg used an innovative approach to teach Alex. African Greys are social birds, and pick up some group dynamics very quickly. In experiments, Dr. Pepperberg would employ one trainer to, in effect, compete with Alex for a small reward, like a grape. Alex learned to ask for the grape by observing what the trainer was doing to get it; the researchers then worked with the bird to help shape the pronunciation of the words.

Alex showed surprising facility. For example, when shown a blue paper triangle, he could tell an experimenter what color the paper was, what shape it was, and â" after touching it â" what it was made of. He demonstrated off some of his skills on nature shows, including programs on the BBC and PBS. He famously shared scenes with the actor Alan Alda on the PBS series, âLook Whoâs Talking.â

Like parrots can, he also picked up one-liners from hanging around the lab, like âcalm down,â and âgood morning.â He could express frustration, or apparent boredom, and his cognitive and language skills appeared to be about as competent as those in trained primates. His accomplishments have also inspired further work with African Grey parrots; two others, named Griffin and Arthur, are a part of Dr. Pepperbergâs continuing research program.

Even up through last week, Alex was working with Dr. Pepperberg on compound words and hard-to-pronounce words. As she put him into his cage for the night last Thursday, Dr. Pepperberg said, Alex looked at her and said: âYou be good, see you tomorrow. I love you.â

He was found dead in his cage the next morning, and was determined to have died late Thursday night.

— Benedict Carey
New York Times


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