They do look like pure CCL. I'm wondering if maybe B isn't laying yet. I know you said she's over a year but maybe she's a very late bloomer. Here's an article to determine if she is...
https://www.backyardchickens.com/articles/who-is-laying-and-who-is-not-butt-check.73309/
	
		
			
		
		
	
				
			https://www.backyardchickens.com/articles/who-is-laying-and-who-is-not-butt-check.73309/
 
	 
 
		 
			
		
		
		
	
	
			
		 
 
		 
			
		
		
		
	
	
			
		 
			
		
		
		
	
	
			
		 
 
		 
 
		 
 
		 one of my orpingtons who lays a light tan egg, sometimes laid a white egg (missing the brown overspray) when she first started up. Same thing after a molt.
 one of my orpingtons who lays a light tan egg, sometimes laid a white egg (missing the brown overspray) when she first started up. Same thing after a molt.
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		