Christmas Island Shearwater (l) 
«• 
One bird, was seen on December 7 approximately 200 miles west of 
Johnston Atoll. 
Slender-billed Shearwater ( 829 ) 
Of the total of 829, 777 vere recorded on November 30 and December 1 
and only 21 after December 2 (including 16 within the grid). None were seen 
after December 7, marking a sharp end to the fall migration. The highest 
numbers were recorded in the east this period rather than to the west, 
indicating that the fluctuations in numbers last month may have been 
primarily chronological rather than geographical. 
Several individuals were noted sitting on the water and many were 
again observed milling about along the flight path. These observations 
may represent young or weak birds. 
Juan Fernandez Petrel (19 + 6 unidentified) 
The total of 19 is comparable to last year's figure for this period 
but represents a sharp decrease over November, in contrast to nearly 
identical numbers in the grid during the two periods. The birds were 
concentrated to the east, more than half of them occurring between Oahu 
and the grid, with low numbers elsewhere. The main decrease occurred north 
of 20° as the birds leave for their Southern breeding areas. 
Black-winged Petrel (2 + 13 P. hypoleuca sp.) 
Two were seen between Oahu and the grid. As in the preceeding species, 
the major decrease in numbers over November was confined to the area outside 
the grid, the numbers within the grid remaining nearly constant, indicating 
that the birds from the northern areas of the wintering range are moving 
south now. 
