The RS-18 RIBEYE IN THE SKY SANDHILL CRANE CALL. The RS-18 RIBEYE IN THE SKY SANDHILL CRANE CALL is a hybrid design acrylic tone board utilizing a special reed. This makes a call that is loud yet easy to run. Many different pitches can be achieved with this sandhill crane call to sound like more than one bird. Soon you?ll be eating some of that ribeye in the sky.