9° 



NEW YORK STATE MUSEUM 



A coinparison of these three systems to show the equivalents of the 

 several orders of our birds, with each order numbered according to its 

 position in each author's classification, gives the following agreement: 



GADOW-RIDGWAY 



1 Colymbiformes 



2 Procellariifornies 



3 Ciconiiformes 



4 Anseriformes 



5 Falconiformes 



6 Gallifonnes 



7 Gruifonnes 



•8 Charadriiformes 



9 Cuculiformes 



lo Coraciiformes 



II Passeriformes 



A. O. U. 1895 



I (part) Pygopodes 

 (less Alcidae) 



3 Tubinares 



4 Steganopodes 



6 Herodiones 



5 Anseres 



1 1 (part) Rap tores 

 (less Striges) 



9 Gallinae 



7 Pahidicolae 



1 (part) Alcidae 



2 Longipennes 



8 Limicolae 



10 Cohimbae 



1 2 Psittaci 



13 (part) Coccyges 

 (less Alcyones) 



11 (part) Striges 



15 Macrochires ) 



13 (part) Alcyones ) 



14 Pici 



16 Passeres 



SHARPE 



4 Podicipedidiformes 



5 Colymbiformes 



6 Procellariiformes 



13 Pelecaniformes 



1 1 Ardeiformes 



1 2 Anseriformes 



14 Cathartidiformes 

 I 5 Accipitriformes 



1 Galliformes 

 3 Ralliformes 



10 Gruiformes 



7 Alciformes 



8 Lariformes 



9 Charadriiformes 



2 Columbifonnes 



17 Psittaciformes 



19 Coccyges 



16 Strigiformes 



18 Coraciiformes 



20 Piciformcs 



2 1 Passeriformes 



Grebes 



Loons 



Petrels etc. 



Pelicans etc. 



Herons 



Geese etc. 



American vultures 



Hawks etc. 



Hens etc. 



Rails 



Cranes 



Auks 



Gulls 



Plovers etc. 



Pigeons 



Parrots 



Cuckoos 



Owls 

 Kingfishers etc. 



Woodpeckers 

 Perching birds 



