Keywords: HydropsalisFurciferaKeulemans.jpg Hydropsalis torquata furcifera http //archive org/stream/argentineornitho02sclarich page/n43/mode/1up Sclater PL 1889 Argentine Ornithology Vol 2 R H Porter London 1889 creator John Gerrard Keulemans PD-old-100 Argentine Ornithology Hydropsalis torquata |