Did the baby chick come from a white egg? If so, it is probably a Tetra Tint. It's a hybrid from crossing a RIR rooster and White Leghorn hen, which is what your all white hen is. The white is dominant, so the chick will be mostly white with some black spots. If it turns out to be a hen, she will lay tons of light brown large eggs.
I currently have some Tetra Tints in the incubator.
I currently have some Tetra Tints in the incubator.
