Jonich 1953 Stercorarius pomarinus June 8 Point Barrow, Alaska One taken about 2 mi. S. of Britton Wanigan was a feeding 07, tertia 20 mm. June 12 One dark phase bird often over drum area the past few days, and apparently established there. June 15 About 8 birds at Nuvuk. There was a con- tinuous conflict among several that were hunting over the plot. June 18 One on territory at S.E. pursued a short-eared owl about 200 yards, calling loudly, and owl led it several hundred feet upward. Another chased a sandhill crane for out over Elson Fagoon from near the south end of the plot. June 23 At plot L.E. 2 nests occur at the west side and one near the S.E. corner, none on the plot itself. Each of these pairs has 2 eggs. This afternoon there was almost constant bickering between the pairs and passing or interloping birds. When a short-eared owl was flushed, apparently the 07 of a nest at the east side, 2 jaegers drove it in erratic flight out over the lagoon. The owl, as seems to be usual, led the jaegers upward for about 200' and maneuvered strenuously to avoid them. June 26 Territorial jaegers pursued a snowy owl when we flushed the 07 from his perch about.