Calcaris lopponicus 21 June Meade River Coal Mine, 15°025'W, 70°24'N, Alaska A group of 3-4 Fs and 1-2 Ts on the census plot obviously non-territorial birds, the Fs going long distances when flushed, the whole group watching, S along the wire. By watching every 7 hours I could find. I found 3 nests, all under Eriophorum tussocks on the tops of polygon ridges. 5, 5, and 4 eggs. The Ts are covering large areas around the nest in their foraging, and sit very tight when they are on. All nests are well feather lined. In the afternoon watched a T feeding and preening. Then fly soared nearly a mile. Little song all day. Fs followed me through the plot giving a two part answer note and gurgling in 2's and 3's, without fighting, even when all appear to be territorial. Obviously, nests are the only way to be sure of breeding population here. 23 June Caught a T in the trap by the coal mine. The tracing of the wing is fully opened and flattened. I had evidently laid 1 clutch and was just starting the 2nd, 1 egg laid, 1 egg enlarging.