More from the AP wire:
Alex’s advanced language and recognition skills revolutionized the understanding of the avian brain. After Pepperberg bought Alex from an animal shop in 1973, the parrot learned enough English to identify 50 different objects, seven colors, and five shapes. He could count up to six, including zero, was able to express desires, including his frustration with the repetitive research.
He also occasionally instructed two other parrots at the lab to “talk better” if they mumbled, though it wasn’t clear if he was simply mimicking researchers.
Pepperberg said Alex hadn’t reached his full cognitive potential and was demonstrating the ability to take distinct sounds from words he knew and combine them to form new words. Just last month, he pronounced the word “seven” for the first time.
Pepperberg said the last time she saw Alex was Thursday. They went through their goodnight routine, in which she told him it was time to go in the cage and said: “You be good, I love you. I’ll see you tomorrow.”
Alex responded, “You’ll be in tomorrow.”
How sad! I wonder what happened? I wonder if they’ll do a birdie autopsy ... I’d want one done. He was too young. How sad.
No obvious cause of death.
Why do I keep thinking "Floweres for Algernon "