Funny that, I have picked up something that is exactly the same as you have described too. No idea how long it was on the ground for but about one or two days I suspect.
I have taken mine to the vet for a worm count and analysis. I also took a fresh poo from my tup with a runny bum for analysis.
The lady I recently brought him from said that he had been wormed on the morning he came to me, but this is at least two weeks after that.
I have been using Verm x to try and sort out his problem but he is still very loose. Poo more like a cow pat on the ground than the classic pellet poo the others produce.
Did she fib about the worming I wonder? Perhaps there is some immunity in her flock.
I will let you know what my investigations throw up.