R.B. Hamilton 1965 Lemmus trimucronatus June 14 Barrow Alaska - I saw about 200 Brown Lemmings in the course of my afternoon walk. They all seemed to be wearing their summer pelage. Most of them were seen scurrying from the open bare areas to under the snow. One time I approached to within 5 ft. of a Lemming that was rooting under a clump of cuttings. Frequently, if Lemmings were momentarily trapped on the tundra, they would give a twittering sound. This sound often directed my attention to them. I chased five lemmings from a patch of snow about 1yd. square. When I got close to them they turned on their backs, and moved their paws, threatened with their teeth and made a twittering sound. A Lemming was seen crossing the open snow It had proceeded about 50 yds. before a Pomarine Jaeger tried to catch it. Somehow or other the Lemming managed to get under the snow before the Jaeger got to it. Later on a mound which contained owl pellets I almost stepped on a lemming. My boot was about 1 ft. away, when I heard the twittering note. The Lemmings finally managed to scurry and find a hole. June 15 Not nearly as many Lemmings are obvious in the Voth area as the area I walked yesterday. I estimate one-fourth as many. There were no Lemmings seen in the Barrell Area.