Ardea cinerea -- Gray Heron, Grey Heron, Héron cendré. Alternate name on piece: Ardea leucophaea [Great grey heron] Lizard in one bird's bill added in published plate. Artist's name(s): Gould, John; Richter, Henry Constantine. Birds well drawn: most of the principal bird is Richter's work, but in spite of heavy erasure, Gould's underlying hand can be seen;