For the past couple of weeks one of the nesting boxes is wet. There is no evidence of an eaten egg, no shells, yolk, etc. The hay & straw is wet; it's kind of a dark spot. The wetness goes all the way through to the floor of the nesting box, so I keep changing the bedding. What could this be?
	
		
			
		
		
	
				
			 
	 
 
		 
			
		
		
		
	
	
			
		 
 
		
 
 
		 
			
		
		
		
	
	
			
		 
 
		 
			
		
		
		
	
	
			
		 
			 
			 
			 
 
		
 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		