It could be a hawk because it is a Polish. The crown of feathers gets in the way....a lot. I would say it was a hawk since it was gutted and then it might have taken the head for a snack or to feed it to its babies. It most likely wasnt an owl, since it was the day. If it was anything else it would have taken it with them. We did have a coon get in our coop once and killed 140 birds with her babies teaching them to hunt. They just kinda bit the neck severing the artery and then ripped em up It was a sick sight but... I would still stick with hawk. But they do like to carry off their victims to go and eat in the trees. But their are some that eat their prey on the ground. Im sorry for your loss though.