Brindled blip star

I took this shot from my living room window not long after lunch today. I've seen this furry fellow slinking around the garden walls and driveway like a little Yorkshire lynx before - and this time he saw me. I'm not really sure what that intense yellow-green gaze means....perhaps 'how dare you?' I suppose it could be 'I don't like the look o'that dodgy looking character up there'. Or perhaps it means 'is this your territory? Are you going to puff up and hiss at me now?'