So I have 4 'production red hens' not really sure what breed they are but I got them from a local commercial egg farm. They are supposed to lay brown eggs, and they did initially. Almost a week or so after getting them we keep finding these odd eggs that have a "powdered" look to them with an almost bluish tinge to it. They share a run / coop with my Ameraucana (real one not EE) rooster and hen who isn't laying yet. We get more of these "powdered" eggs than any regular brown ones, in fact I only get a 'normal' brown egg a few times a week if that. You can see a picture of one of my 4 red production hens and the rooster with his lady. It's hard to see in the photos but in real life the bluish tinge is very noticeable. Here it just looks 'dusty'. Also they all are 'normal' brown on the tops and bottoms, so it looks almost like someone has lightly spray painted them around the center this powdery colour. I'm very new to chickens so I have no idea if this is something that needs addressing or not. Thank you!