Just swapped one of my roosters for a pullet/hen with a family friend. I have some Red Sex Link already, and this new one looks similar, but no white markings. All red with black tail feathers. 
 
New Hampshire?
 
 
(New one is on the ground, with a RSL on the ramp. Notice the black tail)
 
 
 
(Getting shade under the rabbit hutch. Again, all red with a little black)
 
 
(Side angle)
 
 
(Blurry, but my RSL is on the right turning away. You can see they are the same size)
	
		
			
		
		
	
				
			New Hampshire?
(New one is on the ground, with a RSL on the ramp. Notice the black tail)
(Getting shade under the rabbit hutch. Again, all red with a little black)
(Side angle)
(Blurry, but my RSL is on the right turning away. You can see they are the same size)
	