I went out to clean the coop this morning and after I was done my Barred Rock came over for me to pet her. I pet her for about 5 min. After that I noticed that her comb and wattle turned light pink, almost a whitish color. After a few min. it turned back red.  Is this normal? She is about 21 weeks. Not laying yet.
	
		
			
		
		
	
				
			
	