4 
specimen of Delphinus, an alarming number of storm petrels were observed. 
During that same time from on board ship relatively few birds were re¬ 
corded. That these birds sit on the water, their habit of flying in the 
trough of the swell, and their dark color is probably responsible for our 
recording fewer of these birds than are actually present in the area. 
* 9 
Linear density of this species was highest in sector 3 the grid. 
The concentration was close to Boint Ash. A similar concentration was 
noted near Point Dogwood during the last survey. It is possible that 
this population concentration has shifted northward, but such is not a 
safe general statement. On 8 August when the concentration was recorded 
during this survey the seas were calm.' This allowed the observers to 
see and record more birds. However, as far as can be seen from FIGURE 
3 densities were greatest on the eastern side of the grid and became 
\ * 
*. • 
generally smaller in the western portion of the grid. 
Red-billed Tropicbird Number recorded: 2 
Number collected: 1 
One Red-billed Tropicbird was collected 8 August at 34°56’N - 
122°01', just inside Point Ash (sector 3). The other bird was seen on 
10 August at 34°09’N - 121°52'¥ also in sector 3 - both birds in the 
northeast sector. 
Red Phalarope Number recorded: 236 
Number collected 1 
Phalarope densities were highest in sectors 2 and 3* Ike concentra¬ 
tion appeared in sector 2 along the slicks created by the "confluence 
area." One hundred ten birds were recorded in two observations on these 
slicks. The birds were sitting well dispersed in the slick water. 
Phalarope Species 
Most of these birds were probably Red Fhalaropes. However, along 
