I am a newcomer living in Peacehaven East Sussex, UK, 200m from sea
This morning when it was just light but visibility was not good, looking out into my garden, I saw a bird that was dark, I could not make out if it was black or dark grey. The back had white spots and also the head has 2 white spots, it was facing sideways on to me and I could see the front chest was also white. The size I can accurately say was 8-9" from the tip of the tail to the head, it was resting out of the wind and sitting on my fence under the cover of a tree. I watched it for about 5 minutes and the head movement was similar to an owl in that it appeared to swivel more than the more usual birds (sparrows,starlings & crows etc)
I went to get my camera and on my return it had gone.