1 JHITE~HUMPED STORM PETRELS ( Oceanodroma leucorhoa + 0. castro ) 
At-Sea Distribution and Abundance. 
The following maps represent all At-Sea observations made by 
personnel of the Pacific Ocean Biological Survey Program from February, 
1963 i through August, 1965* 
Color code: 
Green «■ refers to numbers of birds (l- 9 ) 
Blue = refers to numbers of birds (10+) 
Red ~ refers to group of ca. 100 found around a dead whale 
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