noted - the southeast and southwest corners. The southeast concentration 
was not present in May. The species also penetrated further north (26°) 
this month. Almost all of the white nape forms were seen in the western 
part of the area this month instead of the eastern part as occurred in 
May. Most of the birds were molting. 
Cook’s Petrel 
A slight decrease occurred this month - 1^7 in May to 130 in June. 
The distribution pattern was similar to the Juan Fernandez Petrel except 
► 
that several were seen north of the high Hawaiian Islands. This writer 
is not convinced that the small Pterodroma can be identified in the field 
without collecting them so all these birds were lumped under the heading 
of Cook’s Petrel. It is very likely that those birds seen north of Oahu 
were Bonin Island Petrels. A few birds were seen that could have been 
Pterodroma leucoptera . These birds had fresh plumage, deep gray with a 
very distinct black W on the back. The head was black on the top and on 
the side of the face. Most all of the rest of the birds were molting. 
Bulwer ! s Petrel 
9^ of these birds were seen this month, 3 less than May. Distribution 
was similar to May except that there was a large concentration to the north¬ 
east of Oahu. 
Leach’s Petrel 
Only one bird was seen this month. Seven individuals were seen last 
year. 
Red-tailed Tropicbird 
Thirty four individuals were seen this month, over twice as many as 
last month. Fifteen were seen last June. 
