My student-built tractor is coming along.  They put the walls up yesterday and are building the roof today.  The question I have for you guys is this...There will be approx a 3" gap between the wall and roof.  Is this big enough for a chicken to get out?  Is it big enough for a predator to get in?  They can cover it with wire but I didn't want them to go to the trouble if you guys thought it wasn't a big deal.  Take a look at the pictures.
		
		
	
	
		
	
		
	
And this one I just put in to show my son
		
	  He is so excited about the chickens!
		
	
	
		
			
		
		
	
				
			
	
	And this one I just put in to show my son
	
	
	