A dipper

Another beautiful day so we went down to Aden Park for a walk. I’ve seen a dipper there a few times before but never really managed to get a photo of one but this one posed rather well.
” A medium-sized, plump bird, the dipper is often seen sitting on a stone in a river or stream, bobbing up and down. It can be found around fast-flowing streams and rivers, mostly in upland areas. It feeds on underwater invertebrates, such as stonefly and caddis fly larvae, by walking straight into, and completely under, the water to find them.
Dippers have a third, transparent eyelid called a 'nictitating membrane' that they can close, enabling them to see underwater.”