P. DeBenedictis 1965 Stercorarius pomarinus 13June Barrow, Alaska noisy during the periods. The Fowl appeared to be snapping an arising claw to the jaegers; finally the conflict was ended when the jaegers quit. 14June. Numbers of jaegers flying over the Central Marsh & Beach ridge areas seem little changed from yesterday; we worked along the slope of Elson hoggon where the density of birds flying about 2/3 about 1/2 times that elsewhere. Much territorial flight seen and long ups given by birds on the ground; saw 2 or 3 leuunning kills and some aerial gulping; no other display behavior. Saw a jaeger continuously dive at a F Snowy Owl, which twice to claw the jaeger or the latter made its passes. Three large groups of jaegers on the ground were seen, the birds sitting very low in the snow, and in both cases consisting of two groups, with scattered individuals around. In the SE part of Central Marsh there were 56+ jaegers, in Wohlsholy Slope 41+ jaegers, and in Skpik Slope 70+ jaegers. as usual all these were only a few dark phase birds, not more than or 8 seen during the day. Saw one that I would all an "intermediate" phase today for the 1st time. 15June In the morning went out to Elson hoggon with D. Mullin, saw relatively few Jaegers. There was a group of about 15 on the flats at the Nend Houses' Marsh and a few oorking along the shore of Elson