THE BIRD BOOK 
107 . Black Petrel. Oceanodroma melania. 
Range. — South Pacific, from southern Califor- 
nia southward, breeding on the 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. 
Black Petrel 
Ashy Petrel 
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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