Some sort of woodpecker?

Some sort of woodpecker?

Observation - Some sort of woodpecker? - UK and Ireland. Description: A fraction bigger than a robin, this bird was attacking a fat block in a woodpecker kind of manner. It was only there for less than a minute. I have no idea what it is.

A fraction bigger than a robin, this bird was attacking a fat block in a woodpecker kind of manner. It was only there for less than a minute. I have no idea what it is.