Last night when I was securing the coop for the night, I notices that one of my pullets' head was huge.She is a Black Copper Maran named Lulu. I waited until morning to evaluate her. When I picked her up she felt like a water balloon throughout. I also noticed a little red scratch possible wound on her head. I have washed her head and put antibiotic ointment on the wound, She is just so swollen And it came on so sudden. She is still eating, drinking and moving around the run. Thank you.