THEY ARE USED TO TACKLE (CATCH) OTHER GUYS HORSEMANS ITS A SPORT IN SCOTLAND, 1 GUY LETS A HEN OUT AND THE OTHER GUYS LOOSE THERE COCKS AND WHO EVER IS ABLE TO LURE HER TO THERE LOFTS AND CATCH HER MUST RECIPRICATE BY LETTING 1 OF THERE HENS OUT TO BE CAUGHT, PLUS THEY NEVER RETURN CAUGHT BIRDS EVEN IF ITS CAUGHT THEM LOADS......