hey, what do you mean hen with the beard? I don't think I have a hen like that! But the egg came from my quail 100% since they are in their own aviary with some budgies. I read that if a quail egg is laid early it can be completely blue! so that might be the case!Are you sure? After looking at the pictures of your chickens, I would say that the blue egg came from your hen with the beard and not a button quail. My buttons always had spots on their eggs. There is nothing in the picture that I can gage the egg size. It sure is a BEAUTIFUL BLUE EGG and I would be proud--no matter what laid it!!!!!!