9° 



NEW YORK STATE MUSEUM 



A comparison 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 Procellariiformes 



3 Ciconiiformes -j 



4 Anseriformes 



5 Falconiformes 



6 Galliformes 



7 Gruiformes 



& Charadriiformes 

 9 Cuculiformes 



10 Coraciiformes 



11 Passeriformes 



A. o. u. 189s 

 I (part) Pygopodes 

 (less Alcidae) 



3 Tubinares 



4 Steganopodes 



6 Herodiones 



5 Anseres 



11 (part) Raptores 

 (less Striges) 



9 Gallinae 



7 Paludicolae 



1 (part) Alcidae 



2 Longipennes 



8 Limicolae 



10 Columbae 



12 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 



11 Ardeiformes 



12 Anseriformes 

 (14 Cathartidiformes 

 (15 Accipitriformes 



1 Galliformes 

 f 3 Ralliformes 

 ( 10 Gruiformes 



7 Alciformes 



8 Lariformes 



9 Charadriiformes 



2 Columbiformes 

 17 Psittaciformes 



19 Coccyges 



16 Strigiformes 

 J. 18 Coraciiformes 



20 Piciformes 



21 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 



