Posted pics of these chicks when they were young, it was thought they were Black Breasted Japanese. Don't know at this point, they don't really look like they are developing any color at all. The picture is a bit blurry, didn't have help to hold them. The one in the picture I'm fairly sure is a hen, I have a second one that looks identical, but has a large red comb already, = rooster. These chicks are about 5 weeks old.