 John Clare , the nineteenth @-@ century English poet based in <unk> , wrote " The <unk> " , a semi @-@ comic piece which is primarily about the difficulty of seeing corn crakes – as opposed to hearing them . In the fourth verse he <unk> : " Tis like a fancy everywhere / A sort of living doubt " . Clare wrote about corn crakes in his prose works too , and his writings help to clarify the distribution of this rail when it was far more widespread than now . 
