Because he is doing well and dependant on you for food and is carrying PMV perhaps. IMO, I think it would be kinder to keep him as a pet.Here's another picture of him. I think he likes this West-facing corner bordering on the Hudson River because when I rescued him he was floating West to East on the rainwater current next to the sidewalk. This suggests he used to hang out on the West side. My feeling is he recognizes his territory because he keeps looking West intently, stretching out his neck.