This is a 'wise man' or 'sage'. Babylonian tradition says that there were seven Apkallu who lived at the beginning of time before the flood. They were sent by the god Ea to teach wisdom to humans.
They are shown as humans with wings. Some have the head of a bird, while others don't have wings and are dressed in the skin of a fish.
They protected people and sometimes hold a bucket and cone for purifying.