All but Blind

All but blind
     In his cambered hole
  Gropes for worms
     The four-clawed Mole.

All but blind
     In the evening sky
  The hooded Bat
     Twirls softly by.

All but blind
     In the burning day
  The Barn-Owl blunders
     On her way.

And blind as are
     These three to me,
  So blind to someone
     I must be.