I thought Mopsy would for ever be a stray or a feral, until she decided that it was safe to come to me. Personally, considering that the kitty is not at home, nor wants to be there, provided that it is nearby, would indicate that there is something at that place which runs kitty off. I am adopting this philosophy when it come to taking in any strays. Cats have an uncanny ability to realize where they can live in relative peace and safety, and if the kitty comes to your back door, then I would attempt to bring it inside. You can use food, or what ever it takes to get kitty inside where there is more love, which is what it is looking for.

............wayne