- 10 - 
Whlte-throated Storm Petrel A^O B=4 C=0 
Three of the four sightings were recorded on 10 August, the 
first day west of Jarvis Island. One individual came aboard ship 
offshore Jarvis. A small breeding colony may exist on that island. 
The only other sighting was near McKean Island where a few have 
usually been recorded on previous trips. 
Leach's Storm Petrel A=0 B=2 C=0 
whlte-rumned storm petrel A=5 B=34 C=6 
Storm petrel numbers were the lowest recorded on SIC at-sea 
since last September. This would be expected since the dominant 
species (Leach's) would only be represented by a few non-breeding 
birds during July-August. Practically all birds on the present 
cruise were recorded during the period 10-13 August along the equator 
from Jarvis to the Southern Grid. The one Leach's Storm Petrel •* 
collected was an immature suggesting that summer birds are likely 
subadults passing the prebreeding time in the "wintering" area. At 
least one good sighting occurred of a bird tentatively identified 
as a White-bellied Storm Petrel. 
Red-tailed Tronlcblrd A=15 B=40 C= 8 
Formal distribution of single scattered sightings was recorded 
over the at-sea except for concentrations upon approach to and 
departure from Jarvis Island where a very large breeding population 
exists. A total of three specimens was collected during the survey. 
f 
