Concept
Birds - classification
Catalogue
- Books
The structure and classification of birds / by Frank E. Beddard.
Beddard, Frank E. (Frank Evers), 1858-1925.Date: 1898
- Books
- Online
Handbook of field and general ornithology : a manual of the structure and classification of birds / with instructions for collecting and preserving specimens.
Coues, Elliott, 1842-1899.Date: 1890- Books
A list of the genera of birds, with their synonyma and an indication of the typical species of each genus / By George Robert Gray.
Gray, George Robert, 1808-1872.Date: 1841