Warning, I think you would be better off not eating your tea while looking at this post.
For some reason, known only to her fiendish feline mind, the cat didn't want her food.
I left it outside, a few minutes later, I passed it and noticed that the Greenbottles had found it and were swarming all over it. I don't know how word got around between them but there were literally dozens all over the cat food.
I would never have guessed that there were that many in the local vicinity. Although looking rather gross, I did think it made too good a photographic opportunity to ignore.
If you have the nerve to look closely, it would appear that the main Greenbottle, has a damaged eye.