THE BIRD BOOK 



.05. 



Black Petrel 



Ashy Petrel 



107. Black Petrel. Oceanodroma melania. 



Range. — South Pacific, from southern Califor- 

 nia soutliward, breeding on tlie small islands on 

 both coasts of Lower California. They are sim- 

 ilar to the Leach's Petrel except that the rump is 

 blackish. Data. — San Benito Is., Lower Califor- 

 nia, July 23, 1896. White egg laid on bare ground 

 at the end of three foot burrow. Size 1.40 x 1. 

 Collector, A. W. Anthony. 



108. Ashy Petrel. Oceanodroma homochroa. 



Range. — California coast, breeding on the Far- 

 allones and Santa Barbara Islands. 



This species, while not common, nests in all 

 manner of localities on the Farallones, conceal- 

 ing their eggs under any rock or in any crevice 

 that may attract their fancy. Their single white 

 egg is only faintly if at all wreathed with fine 

 dust-like specks of reddish brown. Size 1.15 x 

 .86. Data. — Farallone Is., California, June 12, 

 1895. Egg laid on sand in crevice at the base of 

 a stone wall; well concealed. Collector, Chester 

 Barlow. 



108.1. Socorro Petrel. 



Oceanodroma socorroensis. 



Breeds on Socorro, San Benito and Coronado 

 Islands, placing its eggs at the end of burrow. 

 Data. — San Benito Is., Lower California, July 12, 

 1897. Single egg at the end of a burrow 3 feet 

 in length. Egg pure white very finely wreathed 

 with pale reddish brown. Size 1.15 x .87. Collec- 

 tor, A. W. Anthony. 



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