Well since everyone has circumvented the meaning I will take a shot as a warning based on the view of the results of war. The crow represents not just war but its inevitable collateral damage to all exposed with no boundaries. If you're a combatant, black, white or a child victimized by ordnance falling albeit in the wrong place in time. The Crow remains indiscriminate. The human response is to grab a gun and resist and to protect, to fight and to realize the advancement in technology has it's grip forever on mankind.