318 



KEY AND DESCRIPTION 



having the longer feathers black tipped. The under tail 

 coverts are mixed with whitish, and the bill and feet are black. 

 The common stormy petrel of the Atlantic near 

 Europe. 



Length, 5| ; wing, 4| (4;-5); tail, 2J ; tarsus, | ; 

 culinen, |-. Atlantic Ocean, south over the 

 American side to the Newfoundland Banks. 



8. Leach's Petrel (106. Oceanddroma 

 leucdrhoa). — A fork-tailed, sooty- 

 jrown petrel, with white up- 

 per tail coverts and black 

 bill and feet. The 

 forking of the tail 

 is over i- inch. 



Length, 8 ; wing, 

 &\ (6-6|); tail, 3J; 

 tarsus, |- ; culmen, |. 

 Northern oceans, 

 south in America to 



Stormy Petrel 

 California and Virginia ; breeding from Maine northward. 



9. Wilson's Petrel 



tailed, sooty-brown 

 petrel, with white 

 upper tail coverts 

 and a white bar on 

 the wings at the 

 edge of the wing 

 coverts. The webs 

 of the feet are most- 

 ly yellow, and the 

 under tail coverts 

 somewhat grayish. 

 This is the common 

 small petrel of the 

 Atlantic Ocean, in 

 our summer, its 



(]09. Oceanltes ocednicus). — A sqitare- 



Leach's Petrel 



