Very sorry for your loss.
You said earlier there were no claws in the prints. That is a cat.
I have a friend in MN who woke up last week to her horses in the barn going crazy.
She ran outside with her shot gun and nailed a bobcat with a chicken in its mouth.
She lost 11 birds before she got out the door.
And your right...... when you pets or livestock you want to jump and run when they start carrying on, as there is a good chance there is a reason for it. Even if its a false alarm, peace of mind is a wonderful thing.
Again, I am hope your able to find new feathered friends.
Chicken protectors are a wonderful thing.
the lady w/4 dogs, 4 city chickens, 6 meat rabbits, thier kits and a lizard