Black-legged Kittiwake (Rissa tridactyla) - Of the total of 55 individuals recorded only one or two were other than first year birds. All but 7 were recorded in the northeast corner of the grid which is nearest to the channel islands. Of all the gulls encountered, this was the only one that did not habitually follow the ship. Terns: The three birds observed were either Common Terns (Sterna hirundo) or Forster's Terns (Sterna forsteri). Both would be expected to occur within this area, although neither normally occurs in the Central Pacific Ocean. Alcids: Unfamiliarity with this group of birds led to only tentative identifications. As with the Gulls, this group is an important element of this eastern Pacific avifauna, but is almost completely absent from the Central Pacific. This group presents new problems in that they spend the greatest part of their time either sitting on the surface or diving beneath it. They are thus very difficult to find and identify. Ancient Murrelet (Synthliboramphus antiquum) - One individual well observed. Marbled Murrelet (Brachyramphus marmoratum) - One individual well observed. Cassin's Auklet (Ptychoramphus aleutica) - Probably the most common alcids in the area, but only one bird was well observed.