Micropsitta keiensis -- Yellow-capped Pygmy Parrot. Alternate name on piece: Nasiterna pygmaea [Pygmy parrot] Very rough layout drawing, with heavy erasure, changed positions for the birds, and white pastel used for clarification of the final layout to this stage. The published plate differs in bird positions and poses and in background. Artist's name(s): Gould, John; Hart, William Matthew.