There are definitely 3 new kitties in the area. A white one, a grey one and a mixed colour one. No idea where they live, but they seem to like my garden a lot. The white one is getting a lot braver. She/he came right up to my front door to see where I'd gone. By that stage I'd already shut the door though, so she just sat and watched the door. Can't see any sign of them now though.