Probably the oldest cat in the feral colony, certainly the oldest tortie cat, OT has been spending a lot of time away from the colony lately, keeping to herself. Generally speaking, I would say that this is not a good sign. Her age is getting to her. She wants to be alone. She's tired of the rat race, so to speak. And I guess we all feel like that, sometimes.
We love Old Tortie, and we wish her the best. Sometimes, this is just how life really is.