June 6 Point Barrow, Alaska about 2' away. The sandpiper turned toward the lemming and tilted its body forward with neck slightly outstretched, as if watching the lemming. The sandpiper held its tail up to the rear at 45° and seemed to be calling. The left wing rose nearly to vertical maximum extension, was held perhaps 3 seconds, and then was gradually lowered, suddenly to a nearly folded position and then slowly and carefully the last 1/2 mile or so. From the other wing was raised in a similar manner, and brought down. The lemming kept still. The sandpiper then turned broadside and then began to walk away. After a few seconds it flew some 30' in that direction toward a second sandpiper I had not seen before, on the next snow-free polygon. June 12 This is the commonest shore bird in the dis- turbed area about the base. June 13 Nest with 3 eggs at CAF range. Bird left the nest and moved slowly from it, feigning injury. June 14 Three nests with 4 eggs each on beach ridge. Each nest was easily found by watching the parent bird return to it, which it quickly did after the observer withdrew about 100' from where he first noted the bird get up. The most frequent movement of the bird was