This revolutionary bird was the colleague and test subject ofDr.
Irene Pepperbergfor 30 years during her research into animal psychologyparticularly that of birds.
In fact, the term bird brain was often used as an insult for stupidity.
She began training him using a method she dubbed the model/rival technique.
For this training, Alex would observe two of his trainers interacting.
The two trainers would also switch positions often so that Alex could understand that it was an interactive process.
In this manner, they were able to facilitate two-way communication with him.
He knew at least 50 individual objects and could count quantities of up to six.
The parrot was even reported to have an understanding of the concept of zero.
It was then that his cheeky personality would shine through the most.
One of Alexs most impressive moments was when he asked an existential question about his own appearance.
He had been presented with a mirror, andafter observing himself for a momenthe asked, What color?
He then learned the word graythe color of his feathersafter having it taught to him six times.
After she put him in his cage, hesaid, You be good, see you tomorrow.
However, his death did not cause the end of their investigation.
Pepperberg has continued her studies with other parrots, working currently with two named Athena and Griffin.
Consequently, this discovery has led to researchers looking at the capabilities of other types of birds as well.
To learn more about Alex and Dr. Pepperbergs research, visit The Alex Foundationswebsite.