 The garrison fired at the horses of the oncoming Jacobite soldiers and were successful in downing many.Those who did succeed in reaching the defences found themselves confronted by "a dry bank of seven-foot high at the waterside", which most of them quickly decided was impracticable for cavalry.The commanding officer, Edmund Butler, Viscount Mountgarret's second son, "being extraordinarily well mounted", showed the way and spurring his horse, flew over the bank, only to be at once made prisoner.