A Blue Blur

I know bluetits have quite a lot of blue on them (the clue is in the name 😁) but when I saw this picture on the computer screen I was surprised at how much blue there is.

[KoalaGardens🐨]

there's something I really like about this image - viewed on black the blur even looks intentional - they really are blue as you say!

[Valerie Chesney]

So much blue under those wings,