This is my first year with chickens - I have 13 Golden Wyandottes. I love raising the girls and they are sooo much more fun then I ever expected! I got them as day olds in late May, they have been laying eggs since late October. I think they are all laying now as I get a high of 10 eggs and a low of 6 eggs each day ~ even in the cold of NE PA. But today I went out and there was an egg that appeared to have yolk on the outside of the shell. I of course checked to see if another egg broke and this was the cause. But it was the first egg of the day and there was no signs of another egg or that one had broken in the straw in the nest box. I'm stumped - any ideas what could cause this? Thanks for the help!