STORMY PETREL 



104. Thalassidroma pelagica. 5.5 in. 



Smallest of our petrels, and darker tlian either the 

 Leach or Wilson; tail square; upper tail coverts white, 

 tipped with black. 



This species is rare on the coasts of this country, but 

 is common on the shores of the old world. It is the 

 original " Mother Cary's Chicken." They nest abun- 

 dantly on the shores of Europe and the British Isles. 



Their single white eggs, deposited at the end of bur- 

 rows, are dull white with a faint wreath of brown dots. 



WILSON PETREL 



109. Oceanites oceanicus. 7 in. 



Tail square at end; coverts white, not tipped with 

 black; legs long, with yellow webs. This species is very 

 abundant on our Atlantic coast from July to Sept., 

 spending the summer here after having nested in the 

 Kerguelen Is. in February. Their upper parts are much 

 more darker than those of Leach Petrel. 



Their note is a weak twittering " keet-keet." 



