Hi there, so is it true that if a hen lays an egg with a red dot in the egg does that mean it's been furtilized by a rooster? I think I might have a rooster in my hen house but not real sure yet. I have noticed it is pecking all the other chickens and is really aggresive and is never in the nesting boxes. I haven't heard any crowing yet. Thanks and any help would be appreciated.