Unidentified Bird Terrorizes Chimney

I noticed this bird on my neighbour’s chimney this morning. The photo was taken through binoculars. Can anyone identify the bird? It has a slightly long thin beak, a thick red strip around the back of its head, what looks like a little black apron at the top of its breast, and black dots everywhere. It’s still there at the moment pecking away at the chimney. The rapid pecking sounds