once in a while , i hear the noise of a night-time creacher , swamp owls cooing their way to dinner , swooping down on probably short-tailed mice , whose noise is so quiet it 's barely like language at all , but mostly all i hear is the now-and-then fast-fading noise of a night-time creacher running away from all the ruckus we must be making by tromping thru a swamp at night .