CLASS AVES. 

 Subclass I. SPKENISCOMORPHJE. 



Order I. SPH^ENISCIFORMES. 



Suborder 1. IMPENNES. 

 Family Sphxniscidde. 



Subclass II. PELARGOMOBPH^E. 



Order II. CICONIIFORMES. 



Suborder 2. ANSERES. 

 Families Palamedeidse, Anatidae, Phoenicoptcridae. 



Suborder 3. HERODIONES. 

 Families Ibididse, Scopidse, Ardeidse, Ciconiidss. 



Suborder 4. STEGANOPODES. 

 Families Fhoetontidee, Pelecanidae, Fregatidx, Sulidae, Pltolacrocoratidx. 



Order III. FALCONIFORMES. 



Suborder 5. PSITTACI. 

 Families Psittacidas, Trichoglossidte. 



Suborder 6. ACCIPITRES. 

 Families Gyporjeranidx, Falconidse, Pandionidm. 



Suborder 7. STRIGES. 

 Family Strigidse. 



