R. D. Hamilton 1965 Stercorarius pomarinus June 17 Arco. It is located about 50 yd from the road and is marked with styles. It can be found by finding a yellow metal pole about 15 ft. high which is on the gravel roadway. If that pole is lined up with the northernmost pole of the utility poles at ARL and about 80 yd, etc., paced off the nest will be located. Two styles (one with a red flag) are located 1 yd E of the nest. The nest is near the beginnings of trophic. It is just a small scrape, about 6 inches across, in the top of a raised polygon. The ground is frozen at its location. In the nest is one egg. The egg is about two inches long and is a tan color with darker brown spots. The nest was located by the actions of the parents. The ♂ would fly around and would come near me (about 20 ft.) He would hover and emit a call which I have not heard before. It is longer than the normal yipping call and is more hoarse sounding. The female flew in circles, but did not call. While the pair was excited by my presence the ♂ left and chased another jaeger off the rock. I estimate he chased the other jaeger 500 yds, but... he returned. He used the normal yipping note when chasing the intruder. Sometimes when I was near the ♂ would sit at the ground and peck at it (displacement?). June 18 About 80 jaegers were flushed on Central Marsh. About 20 jaegers were flushed on Priest Lake.