Worms/droppings/remains?

Worms/droppings/remains?

Observation - Worms/droppings/remains? - Global. Description: Found this rather unpleasant mess by one of my ponds today. It appears to be a pile of mutilated earthworms though I'm not entirely sure that it's not a dropping or maybe something's intestines. Any ideas what is going on here? There were a few fea

Found this rather unpleasant mess by one of my ponds today. It appears to be a pile of mutilated earthworms though I'm not entirely sure that it's not a dropping or maybe something's intestines.

Any ideas what is going on here?

There were a few feathers nearby so possibly the stomach contents of a predated blackbird?