Hi, I have had chickens for 1 year now, a and recently some of my eggs have been showing these bluish spots, almost like a mould. One of them was hardboiled and the spot grew drastically and turned very blue/green. I dont have a picture of the boiled one, but here are what the spots look like. These eggs are only a few days old, and sat on the counter after collecting. Is something wrong with the hens? Or is a coop issue?