Black cap - new arrival or over-wintering?

Firstly can anyone confirm that this definitely IS a black cap. I've never seen them in my garden before (I am in West Yorks). It seems to like getting right into the middle of the pyrocatha for the last berries the blackbird has left.

Is it likely to have arrived early or been here all winter? I first noticed it a couple of weeks ago.

 

thanks
Mags