out migration as a possible reason for their concentrated abundance. To the assumption of migration not being a reason for their aggregations, I must make a retraction in view of more recent evidence. Since the Kittiwakes appear to have vacated a former area of high density, migration is probably the most suitable explanation for their disappearance; in the prior survey these birds must have been feeding just before migration. In addition to the single Kitti- wake sighted in the southern section, one well-observed Sabine's Gull (adult) was seen there. Alcids Alcids were commonly seen in both non-grid areas, but more so in the northern section. Here flocking activity was occurring as alcids (mostly Rhinoceros Auklets) were seen mostly on the water in the largest groups with smaller bunches seemingly on the move. In the northern section the following were logged: Alcid sp. 131, Rhinoceros Auklet 170, Horned Puffin 8, Xanthus Murrelet 3, and Ancient Murrelet 1. Of the last three only 1 Horned Puffin sighting is reliable as viewing conditions were poor. We were much farther from land in the southern section than we were in the northern section and this provides a possible explanation why we saw so few alcids in the south. Here Rhinoceros Auklets were the most common (9, 1 collected) with 1 Alcid sp. and 2 Horned Puffins also being logged. Most of the Rhinoceros Auklets in the southern section were observed in [illegible] two's.