Can only be that mix. My only roo was a Buff Orpington and only four eggs hatched, two rhode island red and two buff orpington. Unless the egg color was WAAAAAY off.
And dang it, it looks like the only light colored leg one is the one that is currently missing. I don't need a Buff Orpington...
I have four chickens in question, two are Buff Orpingtons, and two are Buff Orpington/Rhode Island Red crosses. That picture was about one month ago.
I think I have two cockerels and two pullets.....but I'm not sure.
Here is the Buff Orpington that I think may be a roo:
side view...