Note 17 — Chapter II · CLASSIFICATION.
Reading edition
This classification of birds is essentially that of Gadow and Selenka in Bronn's Classen und Ordnungen des Thierreichs, Band vi., Abth. iv., Vögel. Leipzig, 1891.
Reading edition
This classification of birds is essentially that of Gadow and Selenka in Bronn's Classen und Ordnungen des Thierreichs, Band vi., Abth. iv., Vögel. Leipzig, 1891.