My opinion, for what it's worth... they ate likely both pullets, showboat if combs are the same size. My 6 week old RB have noticeably different sized combs. That said. .. If you ate trying to maintain any autosexing capabilities I would not breed the lighter one. If they aren't easily autosexed at hatch you don't want to perpetuate that.I'm back..They are older..pullets right? A lot of folks thought the lighter one was a cockerel..but it did have a small amount of chipmunk striping on it as a chick, no white spot.
The two in the back..Rhodebars
Fast little stinks wouldn't stay in one spot.
The lighter one up front, the one that came out real dark chipmunk on right.

Got a few pictures, hope they show up well enough for ideas..they sure both look like pullets to me. Same size comb. I love the barring coming out on the lighter one.. The legs aren't any different in size either. Not one thicker than the other. I don't see saddle feathers? They hatched, Dec. 30th, so just over two months old.
 
	 
 
		 
 
		 
			
		
		
		
	
	
			
		 
			
		
		
		
	
	
			
		 
			
		
		
		
	
	
			
		 
 
		 
 
		 
 
		 
 
		
 
 
		 
 
		 
 
		 
 
		 
 
		
 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		