Look at the rare egg I collected today! It’s almost pure white. Coturnix quail eggs are tiny white eggs with brown patches or spots on them. Sometimes they can have a blue tint to them or look like someone sprinkled them with pepper, they can also have a chalky appearance to them, and on rare occasions, they can be almost pure white. All these are normal traits of a Coturnix Quail egg.
Some hens that lay white eggs usually lack a functional pigment gland, but not always. In my case, the quail that laid this egg does not lack this gland. This is just an egg that didn’t “get her make-up put on” before she was laid:)