To kill a mockingbird "It was a sin ..."

  How old were you
  when you got your first gun?
  Thirteen or fourteen.
  I remember when my daddy
  gave me that gun.
  He told me that I should never
  point at anything in the house...
  and that he'd rather
  I shoot at tin cans in the backyard.
  But he said that soon the temptation
  to go after birds would be too much...
  and that I could shoot
  all the blue jays I wanted...
  if I could hit 'em.
  But to remember it was a sin
  to kill a mockingbird.
  Why?
  I reckon 'cause mockingbirds
  don't do anything...
  but make music for us to enjoy.
  Don't eat people's gardens.
  Don't nest in the corn cribs.
  They don't do one thing
  but just sing their hearts out for us.