I was walking along the bank of the Calder below North Dean Woods, Copley, on 18th May, when an object floating along with the brisk current caught my eye.
It was a male Mallard, belly up, feet in the air. It wasn't dead, but travelling tail first with it's feet relaxed
It was moving its head, looking round as it got level with me as if to say "Look what I can do" !
As I fumbled to get my camera out it nearly went out of sight. The last thing I saw of it was when it flipped over into the normal position and started paddling against the current.
I wouldn't believe this if I hadn't got a picture of it. It's poor quality but it confirms what I saw. (I know it looks dead in the picture, but I had no time to switch the camera to video.)
What could have been happening?