Soot 7 / Storm Petrel 
On 22 April one bird of this species was observed In the grid area. 
This species appears to occur uncomonl.y but possibly regularly in the 
grid area. 
Bulwer* s Petrel 
Concurrent with the arrival of this species on its northern breeding 
grounds, an increase in numbers of 36 ?^ from six in Parch to 28 in April 
was experienced. This species was distributed in the southern and western 
portions of the grid and adjacent to Oahu where it breeds in fair numbers. 
Rod-tailed Tropicbird 
Numbers of this species diminished to seven, only one-third of the 
March total of twenty, due possibly to increased domestic responsibilities 
at this time. 
■ 
White-tailed Tropicbird 
Four individuals of this species were seen in the grid area, a 
slight increase over the two seen in March. This species appears to 
occur regularly but in low numbers throughout the grid area in spring. 
Blue-faced Booby 
Four immature Blue-faced Boobies wei'e observed in the southern 
portion of the grid in April, indicating a small but regular springtime 
population in that area. 
Brown Booby 
Four individuals of this species were seen within ten miles of 
Oahu on It May. 
