Alex the African Grey parrot dies at 31

From the AlexFoundation website: Alex the African Grey parrot and subject of landmark studies of bird intelligence dies at 31 WALTHAM, MA (SEPTEMBER 10, 2007)—Alex, the world renowned African Grey parrot made famous by the ground-breaking cognition and communication research conducted by Irene Pepperberg, Ph.D., died at the age of 31 on September 6, 2007. […]