MS of waves crashing on beach, tide retreating. MS of flood retreating from marsh. Time-lapse of marsh with ebbing tide, green. Marsh becoming muddy. Time-lapse of many snails crawling around in mud. CU of fiddler crab. LS of many crabs in mud. CU of female fiddler crab scooping mud into mouth. MCU of two male fiddler crabs waving their large right claws. Three shots of fiddler crabs crawling on mud flats. MCU of willet hunting for fiddler crabs. MCU of willet catching crab and struggling to eat it. Laughing gull swooping down to mud, catching fiddler crab, swallowing it. (407)