Stercorarius parasiticus 30 May Meade River Coal Mine, 157°25'W, 70°39'N, Alaska A dark-phased adult [illegible] along the due face. 2-3 km. N of camp flew directly over my head, and continued on, about 11:30 A.M. 31 May A light phased bird hanging about the camp area most of the day, one seen with a dark bird. Several flicks of "jaegers" seen at a distance from camp. A different light phased bird seen in the afternoon and once cooling beaded. They seem to be working the tundra but not trying to catch anything in particular. At 5 PM Ray spotted a light and a dark bird together surveying a Ptarmigan near my "census plot". 1 June A pair - a dark and a light bird - seem to be establishing themselves behind camp. Patrolled all day long, more or less actively patrolling, but not obviously bothering any of the small birds. A Long-tail Jaeger which went through the area they patrolled was vigorously attacked until it left the area. About 3 PM Phil Johnson spotted the light bird diving at a Glaucous gull; the dark bird perched near by. The jaeger scooped at the gull about 20 times in 3-5 minutes, hitting it several times, then landed near the dark bird. The gull did not leave the area (q.v.). 2 June The "local pair" seen near the large lake N of camp in the morning, and midday. 2 Dark birds seen about 1/2.