If anyone is heading up there soon (Dennis and Marilyn next weekend?), it may still be there, you could put it in a ziploc bag and save it if you think of it. Not critical though. As you head out for the woods straight through the field, the second row of bales you come to as you are walking out, the first bale in that group is the one w. this owl pellet on it, and it's on the near end of that bale. I wonder how quickly the rain would disintegrate this, or if they stay pretty intact.
Owls are quite fascinating. I'm glad that in our eating habits, we humans are not required to cough up these massive hairballs as part of our digestion regimen.