3 
Newell’s Shearwater 
A sharp !£Cf increase from 12 in April to 66 in Ka y ms experienced 
this month due probably to the beginning of its breeding cycle in the 
min Hawaiian Islands* This species was seen in all parts of the grid 
except the eastern portion. Concentrations were found around Oahu and 
across toe southern portion of the grid. This species was observed 
frequently in small numbers in feeding flocks emposed mainly of Sooty 
Terns and Wedge tailed Shearwaters. 
Bonin Island Petrel 
Numbers of this species rose abruptly ft* ora 2 in April to 6y in Nay, 
all but one of which were in the south to southeastern portions of the 
grid area. Virtually all of these birds were undergoing heavy molt. 
Several ware flushed from the water by toe approaching ship. 
Herald’s Petrel? 
TWo medium sized chunky petrols with brown upperparts, white under- 
parts and mottled dark unlerwings were probably this species, Noth birds 
were clearly seen at close range. 
Bark-rump ed Petrel 
This species rose 671'- in numbers, from 17 in April to 131 in May. 
All but 6 of these were in the southern portion of the grid area* All 
of these southern birds wore undergoing heavy molt. Primary and secondary 
wing feathers were often missing and the entire dark upperparts were 
splotched and mottled. Many birds wore flushed from the water by the 
approaching ship. The northern birds had without exception fresh plumage. 
