Coliciris pusillus -3 5 June Measee River Coal Mine, 152°25'W, 70°29'W, Alaska and 1-2 pairs on the first 1-2 miles of the South Ridge. At least 2 pairs active about camp and 3 pairs near the village. Considerable songflight and one fight. In two pairs, the larger appearing bird was the one that sang. They seem to feed mostly on very open areas, corral flab, often where the ground is saturated and with hummocks (mounds and channels) grow to carex and ledum. They run about nervously pecking for food. Times. Occasionally they go into the Casey marshes where they are hard to see in the grass; here they feed along the edge of slipponds. Where ground is disturbed, they seem to like it best. Song from 2 A.M. on, but little feeding evident before about 4:30. The birds in the village in disturbed areas and a f? again seen on the ice in a bany marsh. 6 June There are several pairs near the village. These feed mostly on a weasel road where there is water running about 1/4" deep over a weed-mat- Elymus mixture. The?s are very active and chase all intruders. Lots of song and wing-up, tail up ground display. Now act like they are nesting yet, and the f? stay close together all the time. Occasionally seen chasing western Sandpipers. In camp two or 3 feed along the edge of flooded Casey marshes, which is probably a more natural habitat. It is really quite a common species along the river, which surprised me. Probably 10-15 pairs within 2 miles of camp.