Thanks guys. It could have been anything really, I still haven't found her head so whatever it was took it with them. It happened during the day, around here in daylight there are no coons or possums around, There are a ton of eagles, hawks,skunks, weasels, mink, unruly dogs, who should be on leashes. Usually the crows keep the hawks away but lily was the type to run up to anything not knowing what could happen to her. I am thankful i still have one pullet just like her but not so fearless lol. The flock is taking it harder than me, My roo is looking all over for her this morning and her sister petunia is really depressed and wont come off the roost in the coop. I am keeping them on the patio in an enclosed run with the coop attatched for a few days at least. I think that what ever got her will be back and when it comes back as long as its not a hawk or eagle im opening fire on the thing!
ETA: I was just talking to my DH about how lucky we have been so far predator wise then this happened, If it was up to him he would have them in lockdown 24/7