Who is the little boy that Moocow meets in James Joyce's "A Portrait of the Artist as a Young Man"? Is the Moocow Stephen?

The
story with which the novel opens is one which Stephen's father told him, as is explained in the
second paragraph. The story should then be read in the voice of a father speaking to his son:
the "moocow" is about to meet a little boy, "baby tuckoo," who is Stephen
himself. Stephen makes this explicit in the third paragraph of the novel, when he states,
"he was baby tuckoo."

The disjointed nature of this opening
chapter is intended to represent the slightly confused and fragmented way in which a young child
might perceive the world. The...