Spotted yesterday.
Is this a little auk? Thanks.
It's about the size of a pigeon.
I definitely agree; it's a Razorbill. A couple of particularly good features for Little Auk are the tiny bill and the usually obvious and diagnostic series of white marks down the edge of the back (scapulars). Also, as TeeJay pointed out, they have a greyish rather than bright white underwings. Generally size can be hard to judge but Little Auks always seem to look tiny; they are about the size of a Starling.