Even better when viewed full image. I can see the light through his eye. Apols. for being so behind in comments, you have some superb bird images this week - I'm going to look properly later this evening :-)
@emmadurnford Thanks. Its ok re commenting it a very time consuming task. @zenna I'm not sure but I did nearly title it "fat bird" @roachling Thanks I think so but he/she is a bit plumper than some i have seen.
It's probably just 'fluffed up'!