I was wondering if anyone could help. My husband and I currently have four cats with a cat flap so that they can come and go as they please. Over the last two weeks we have been coming down in the morning and home after work to find a black and white cat asleep on our sofas. He isn't aggressive and our other cats aren't bothered by him. He has a collar but no tag. Whenever we see him we take him outside instantly but he keeps coming back.
We have a microchip catflap so don't know how he is getting in. Anyone have any suggestions?