That is really early..might want to double check your thermostat...
Lala...its a chicken..
honestly it looks like a very light colored Crested SFH
Lynn,
I am really sorry..what a horrible thing to happen. There is nothing wrong with anything you did. Your chickens should be able to free range. You did nothing wrong. The owner of the predator did.
Take a breath..
Do an assessment of your chickens. Examine them. The ones with no wounds, keep them together to keep warm
Treat the wounded first..
Clean them up the best you can, cover all wounds with NuStock or salve you have on hand for cuts.
Talk to them and calm them
Call the police
File a report
Press charges
If you know who owns the predator..go talk to them and inform them that you kill predators and they need to replace all chickens lost.
Please keep us informed.
You did nothing wrong...
Good advise