Bulwer’s Petrel con’t. 
Islands. Twenty-eight weraseen within a period of one-half hour during 
the evening of 13 July, all heading toward Lanai, less than ten miles 
distant. 
Harcourt’s Storm Petrel 
Only two of this species were seen in the grid area, both toward the 
southern end* This species has steadily decreased in murfoers in the grid 
area from a peak of 129 birds in April. 
Red-tailed Tropicbird 
Numbers of this species increased \xt% from 1$ in June to 22 in July. 
/ - 
Txi is species was fairly rand only distributed throughout all but the south¬ 
eastern corner of the grid area* Two very young birds were seen* both 
heavily venuleulated on the back and lacking central retrices altogether# 
Hi it ©-tailed Tropicbird 
This species increased in numbers $T% from seven in June to eleven 
in July* All of these were seen in the northern half of the grid area* 
Brown Booby 
Two of this species were seen on 1 August heading toward Moku Manu, 
only fifteen miles distant. 
Red-footed Booby 
Seventeen of this species were observed in July. All but one of these 
were seen in the vicinity of Oahu. The other, an immature, was seen U00 
miles northeast of Oahu, further from land than any Red-footed Booby seen 
thus far in the grid area. 
