Keywords: Bucerotidae3 Wytsman.jpg Bucerotidae 1 Alophius erythrorhynchus 2 Bycanistes buccinator 3 3a B fistulator 4 Ortholophus macrourus 5 Rhinoplax vigii https //www archive org/details/generaavium00wyts Genera Avium 1904 Philogène Wytsman d 1925 Bucerotidae Bycanistes fistulator PD-old-100-1923 |