That sounds like my boy, whom I suspect is part EE. He entertains himself so well when he is confined or when I let him out and he's by himself in the yard. I raised him alone, since his StepMama and sib tried to peck him to death, and he's never seemed to mind being solo. When I tried to bring in a mate, she was noisy, and he and I were both relieved when we took her back outside to join the flock. He seems quite contented being an only child. He will socialize with the other hens, now, and chase them, and such, but he has no problem being alone or with just me. I think he realizes he's a very special chicken.