A short time ago I posted a shot of a Redwing with a fly which had settled on its plumage.
I've now re-examined the original sequence chronologically. In the next frame, taken a couple of seconds later, the bird is trying to scratch itself with a claw and is so contorted that it looks a right mess. In the following shot, this one, it's giving itself a good shake. So I guess it had been aware of the fly's presence and didn't like it!
"The unfavorable low angle is a burden for bird photographers", to quote jbpixels on another Gallery image.
Thank you for your kind comments on my pictures, and good birding!
John