R. S. Grossin 
19^5 
Christinas I. Shearwater ( contd ) 
bushes on the east side of the island . This bird was collected on 21 July. 
The flight of this species is distinctly different from the wedge-tails. The 
straight-held rounded wings differ markedly from wedgies • 
August 7 - Estimation still remains at 3,000 at least 30 burrows were found so 
far with large young. These dark young are as large or larger than 
the parents, but still down covered. 
August 10 - A banded bird (5^-38003) was found with another mated bird which 
was not caught. A number of birds were found on the north end along 
the beach under the large boulders, some large chicks were noted here. 
Bonin Island Petrel - Aug. 7 - About 20 birds sitting in grass or at burrow entrances. 
No indication of nesting. About 1 dozen dead individuals found - at 
least one of these freshly dead. Estimated population 50 “ 100 birds 
on the nightes of the 5 and 6 only a few individuals were seen. 
August 8 Birds are increasing each night. 10 Aug - At least 10 birds seen by 
each of the members of the party during the nights banding. A few 
pairs seen by burrows. 
11 11 Over 30 individuals seen by me during the nights banding. Comparable 
numbers seen by other members of the crew. Considerably more pairs 
are now being seen. Husted and I observed one individual digging a 
burrow in the grass cover on west side. A few others were noted 
digging by other people. 
Bulwer*s Petrel - Laysan 
18-21 July On the first night on the island I discovered a pair of adults at the 
burrow; one outside, the other withino A chick estimated to be no 
more than a few days old was found within the burrow about 12” deep 
under a large tuft of grass in mixed gra s s - Seae vola cover at W side 
of island. 
Occasionally I found a single bird sitting quietly in clearings in 
the Scaevola cover. In the evening birds often were seen flying 
back and forth over Scaevola apparently attempting to locate their 
nest site. I believe the birds are not adept at locating the nest 
sites and may make 30-^-0 passes before finally zoning in. As a bird 
flies over the area near the nest site it moves very showly and 
hesitatingly and once past the immediate area appears to recognize 
unfamiliar ground and immediately speeds up, takes a new swing around 
and repeats the process. 
A pair of birds were collected from a burrow on the 21 July. One of 
these was banded. 
Estimated population = 2,000 birds. 
7 August Estimated population at least 2,000 birds. Many singles or pairs 
sitting by burrows, but the burrows are invariably empty. A few chicks 
are found. These small, down covered. 
Red -tailed Tronicbird “ Laysan 
18-21 July Estimated population - 3,000 birds. The red-tails nest primarily, 
if not exclusively under Scaevola frutescens and generally only where 
