I need some advice, One of my hens for the past two days has layed an egg with a bloody mucus on it. I looked at the hen and she has a bloody discharge on her rear but has no visible signs of prolapse. I broke open the egg and there are no signs of blood in the egg and it was fertilized. I cleaned the hens backside( did not want the other hens pecking at the blood and further hurting her) and saw signs of blood around the opening. when I set her down outside she squatted and discharged mucus.