Last year, my hatchery barred rocks were developing combs and wattles by 16-17 weeks to lay by 21-22 ish weeks. Of course the leghorn hens combs and wattles were also very developed by 16 weeks, too, and laid at 18 and 19 weeks. 
This year, I didn’t have a hen develop a semblance of comb or wattles until after 22/23 weeks.
It’ll all depend on the breed and the individual bird. Are these the only two with come and wattles?
Here’s my birds I’m referencing at 17 weeks.
		
		
	
	
	
		
			
		
		
	
				
			This year, I didn’t have a hen develop a semblance of comb or wattles until after 22/23 weeks.
It’ll all depend on the breed and the individual bird. Are these the only two with come and wattles?
Here’s my birds I’m referencing at 17 weeks.
	
  I think I have another rooster.... my golden-laced wyandotte.