HOW CAN I TELL IF A HEN IS BROODY. I HAVE 4 HENS AN 1 ROOSTER. THEY ARE FREE RANGE. THEY GO WERE THEY WANT TO. THEY HAVE BEEN SLEEP IN MY WOOD SHED. ALSO THEY HAVE BEEN LAYING THERE EGGS IN THERE WHICH I COLLECT ONCE A DAY. HAVE BEEN GETTING 3 FOR SOME TIME. NOW I ONLY GET 2. ONE OF THE HENS HAS...