A few nights ago my hen wouldn't go in the coop and I couldn't get her. Something killed her that night or in the early morning. And I looked around the run and I found a small hole but it wasn't from my chickens dust bathing.
Yes, post on the predator threads, in as much detail as possible. They may be able to tell you what predator you are dealing with. Predators can jump, climb, dig under, tear through or descend from the sky - Raptors. Ev erything loves to eat chicken- what you want is a "Ft.Knox" of a coop and run, to keep them safe.