We have both of those around, but I don't think it was them initially. She would wonder off in times before, and with that hairdoo, had trouble finding way home.
A possibility is she wondered off and some person figured they found themselves a free chicken.

,Couple times, I found her 1 block away from home.
ETA:
But now Mystery may be solved, As I was writing this, I went out to let chickens out. Went to get some scratch treats, and when I was coming back, witnessed a hawk attack on another chicken. Both DW and I were outside. Lil Ashley, (OEGH) did escape a close one. Hawk flew up to a tree branch and just parked there. Branch was too high for me to scare hawk off with anything, so I went inside and got a fire cracker. Blasted it, and hawk split the scene.

I did spot an area in backyard with some of my Polish hens feathers. She was molting heavy, so I assumed other day, it was molt feathers. Now I think the hawk was the predator, and came back for another meal 2 days later