Sorry, but you're wrong on both counts. Peafowl are related to pheasants, and are actually much brighter than chickens. I raise peacocks, and they are very bright, expressive, and individual in their personalities.
The man who did this has some sort of mental problem; he hits it with a brick, kicks it, drags it home and then claims it died from the stress of being taken home. The guy is either a retard or a serial-killer-in-training. 