5 
Leach*s Storm Petrel. Low numbers were present in the eastern and southern 
parts of the route, but few were seen thereafter. Numbers declined 
from 35 of last month to 5 this month in the Grid. Most were flying 
north. One was collected. 
White-throated Storm Petrel. A White-bellied etorm petrel probably of this 
a 
species was seen at a distance on May 9- 
Red-tailed Tropicbird. Uniformly distributed in low numbers throughout the 
trip. Five were collected. 
White-tailed Tropicbird. Less randomly distributed than the preceding species, 
with few being seen in the latter half of the trip. Three were collected. 
Blue-faced Booby. Found in moderate numbers between 8 degrees North and 10 
degrees North, usually not participating in mixed flocks. The largest 
numbers were seen May 11, in company with high numbers of Wedge-tailed 
Shearwaters and Sooty Terns. A total of 29 was collected, 7 with bands 
from Jarvis Island. The -single booby recorded in the Grid was of this 
species. 
Brown Booby. Twelve were seen, 9 of them off Kaula and Niihau May 24. 
Red-footed Booby. A total of 51 was seen around Oahu the first day and 152 
were sighted off Kaula and Niihau Islands May 24. Only one bird was seen 
away from land, 120 miles NW of Palmyra on May 15. 
Greater Frigatebird. The majority of this species were seen north and west 
of Johnston Island, May 20 and 21, probably birds from that island. 
4 
Sooty Tern. Most birds collected north and east of the Line Islands did 
not.have brood patches while those from northern areas did. Immature 
c 
birds were present in the southern area as well. Three of these were 
collected, one apparently molting into adult plumage. Only 327 were 
i 
observed in the Grid. A total of 6k was collected. 
