specimen of Delphinus, an alarming number of storm petrels were observed. During that same time from on board ship relatively few birds were re- recorded. That these birds sit on the water, their habit of flying in the trought of the swell, and their dark color is probably responsible for our recording fewer of these birds than are actually present in the area. Linear density of this species was highest in sector 3 of the grid. The concentration was close to Point 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 dauring 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' Original text: N - 122°01', just inside Point Ash (sector 3). The other bird was seen on 10 August at 34°09' N - 121°52' W 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. The 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 Phalaropes. However, along