Keywords: AnasUndulataDavies.jpg Anas undulata http //archive org/stream/cu31924001576226 page/n257/mode/1up Horsbrugh Boyd 1912 The game-birds and water-fowl of South Africa Witherby Co London 1912 Creator Claude Gibney Finch-Davies PD-old-auto-1923 1920 Anas undulata Claude Gibney Finch-Davies The game-birds and water-fowl of South Africa 1912 |