I’m not really sure. I think a coyote or fox got them. Noticed some missing then found a super long feather trail in the yard and another pile of feathers, two separate chickens. Sure the third is a goner too. There were five missing but found two. I actually only noticed something was wrong cause two of the came to the back door and got me.
I'm glad you found the two. It's sad to lose any. It always gives me some comfort to remind myself that someday we will live in a world where there will be no death and animals won't eat each other.