Wilson's storm petrel 



243 



Family Procellariidae. 

 Small; the nasal tube long and elevated. In all New Zealand 

 storm petrels the legs and feet are very long and slender, with 

 the outer and middle toes nearly equal. Only ten secondary 

 feathers in the wing. 



Wilson's storm Petrel. 



(Meyer.) 



Key to the New Zealand kStoi'm Petrels. 



1. Upper tail coverts white. 

 Upper tail coverts grey. 



2. Webs of the toes yellow. 

 Webs of the toes black. 



3. Forehead and throat dark. 

 Forehead and throat white. 



2 



3 

 O. oceanicus. 

 C. melanogaster. 

 G. nereis. 

 P. marina. 



Genus Oceanites. 

 Tarsi booted; the claws sharp. World wide. 



Wilson's Storm Petrel. 



Oceanites oceanic us. 



Sooty black; the upper tail coverts and outer feathers of the vent 

 white. Bill black. Legs and toes black, the webs yellow on the inner 



