A review of recent attempts to classify birds; an address delivered before the Second international ornithological congress on the 18th of May, 1891, Sharpe, Richard Bowdler, 1847-1909 International Ornithological Congress. (2d : 1891 : Budapest) text Budapest : Pub. at the office of the congress, 1891. eng 1 p. l., 90 p. incl. 9 diagr. 26cm. At head of title: Hungarian committee of II. international ornithological congress. (Budapest, Hungarian national museum) extracted picklist 20090219 Birds -- Classification