This is kind of a farming question I guess - we have two little black hens that lay one egg each, every morning. I'm curious why there is sometimes a "red spot" on the yolk. I've seen the spot as small as a pin-prick, and a few times quite larger. (we also have a rooster, I don't know if he has anything to do with it) I actually throw out (or give to our dog) any egg that has the red spot. I would like to know exactly what it is, and if we can prevent it, or disregard it and use the egg anyway . Any answers are appreciated!