Yeah, all of this week we are going to be gone in the evenings and I can get pretty impatient when they won't go in the coop because they aren't ready. But its worth taking the time to 'herd' them up. Even if it means picking each bird up and placing them in the coop, shutting the door, getting another bird, putting them in the coop, closing the door, etc.
I know what you mean! Sometimes its hard to put them up early when their used to free ranging.
Raccoons got several of our animals before we installed better security measures. They stole two chickens, massacred our koi, and ate our turtles. With the exception of the turtle shells, though, the raccoons didn't leave any of the animal behind. They just.. disappeared. Since then I tend to blame raccoons on everything since I've seen what they can do. In my experience, though, they take the whole animal.
It could be a skunk or coyote as well. I would think a coyote would take the whole thing too though.
I'm so sorry for your loss- it's terrible to lose them like that.