On April 9, I came across a "crime scene" on a snowy trail in Moosehorn WR in Maine. Feathers were scattered on the trail. I was not sure about the identities of the prey or the predator. Woodcocks had been displaying for about a week, and the feathers looked as if they could have belonged to a woodcock, so that was my hypothesis. I sketched a few feathers, then looked for and found the bill which was very long and oddly shaped at the end - certainly a woodcock. None of the feathers were broken. They appeared to have been neatly plucked. I imagine a mammal would have been messier, breaking feathers or leaving feathers in clumps, so a hawk or owl was most likely the predator. I looked for signs of an owl's roost but didn't find anything, so I really don't know.
It was fun to play detective and look more closely to try to solve a mystery.