Lesser spotted woodpecker spotted

Cycling to kayaking yesterday past when at the bottom of Marsh Lane I saw a slim bird fly from high up on one tree to high up on another. I immediately thought woodpecker, but it looked rather small. Would a lesser spotted woodpecker be that small?

Checked in my Collins bird guide when I got home, and yes it would.

Rather pleased with myself, a very amateur amateur birdwatcher, that I recognised the shape.