The boy was as bull-headed as they came and had far more in common with the golden eagle than the wren in the story, in attitude if nothing else. Handy had surmised that he was going to take the entirely wrong message from the story and go off and probably get the shit kicked out of him. He was sure of it; he knew guys like that back when he was a child. Insecure and all bluster, they got what was coming to them. To that end, he cut off the ending of the story where the wise owl explained to the eagle why the wren was a more worthy king; for being clever and wise and planning ahead, even when he was not strong. No sense making the moral too easy for the little shit.