thanks all for the answers. When they were younger, I was pretty sure they would be roos, but then. . . when the one started to copper out and the other didn't, I wondered. and the saddle feathers are not as pronounced on the blacker one.
I am bummed, out of seven, these two survived. I don't know where the others went. They were tucked away at night and in the AM gone. sigh.
in the words or Sienfeld's "egg nazi" No dark eggs for you! (at least not now)