Well' I must say its a great shot of the fence posts, which I also like. You had me going for a minute. At first I thought it could be the dark spot to the left of the building (or whatever) in the background. One thing I have going for me is that most people say I am for the birds anyway. (And I do use a fast camera)
Ha, ha, John! I was looking closely, and can usually spot them even small (cause that happens to me a lot too) - but I couldn't spot this one at all. LOL