Gould, P. J. 1964 Pomarine Jaeger 1 January 3--Pacific Ocean, 1st day out Oahu, Hawaiian I. These birds have been following behind the ship all day. The highest count being 12 at 1405 hours. Each bird appears to have a different plumage pattern. Quite a few were adults, but many were sub-adults. Both dark phase and light phase (extremes of both) were present in about equal numbers (light phase may have been slightly more predominant). These birds were attracted to the garbage thrown overboard, but were occasionally seen in front of the ship. They were attracted to bits of white paper thrown over the side of the ship. None were observed to attract the Albatross or each other. Many were noticed to sit in the water. Collected 1 Imm. ♀. January 18--Pacific Ocean, 16th day out, ca. 100 mi. SW Oahu. One dark phase bird seen today, circled ship a few times, then departed. February 3--Pacific Ocean, 1st day out Oahu, Hawaiian I. At least 4 birds around. 4 (2 light phase and 2 dark phase) observed at 1254. These birds have been following the ship all day as have the Albatross. They often fly off and sit quietly in the water for extended periods of time. One was observed to scratch its head while in flight. No parasite behavior noted. Dark phase birds have been more noticeable. March 2--Pacific Ocean, 1st day out Oahu. The largest number seen at any one time was 21. This was when the birds gathered at garbage that had been dumped overboard. Most of these birds were adult light phased individuals. A few were adult dark phase and one juvenile bird was seen. At 1818 a feeding flock of Sooty Terns was found. There were at least 10 Jaegers mixed in this flock chasing the terns.