The Collaborative International Dictionary of English v.0.48:

Kanacka \Ka*nack"a\, Kanaka \Ka*na"ka\, n. [Native name, prop.,
   a man.]
   A native of the Sandwich Islands.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Blackbird \Black"bird\, n.
   1. Among slavers and pirates, a negro or Polynesian. [Cant,
      pejorative]
      [Webster 1913 Suppl.]

   2. A native of any of the islands near Queensland; -- called
      also Kanaka. [Australia, pejorative]
      [Webster 1913 Suppl.]