I have three white leghorn pullets. Today, one sat in the nesting box for over an hour while the other two did their free ranging. They love that and to sit in the box and not be outside is not normal. Anyway, one sat in the nesting box for over an hour and didn't leave an egg. I just looked her...
A couple weeks back a fox nearly had one of my white leghorn pullets - I have four. They love to free range, which I let them do after they have laid their eggs. The one that was almost a fox dinner got away but had only one tail feather left. I did not see any blood on her but I did not inspect...