The Collaborative International Dictionary of English v.0.48:

Greenfinch \Green"finch`\, n. (Zool.)
   1. A European finch (Ligurinus chloris); -- called also
      green bird, green linnet, green grosbeak, green
      olf, greeny, and peasweep.
      [1913 Webster]

   2. The Texas sparrow (Embernagra rufivirgata), in which the
      general color is olive green, with four rufous stripes on
      the head.
      [1913 Webster]