J Pllyers 1977 Pluvialis squatarola Atkasook, Meade River, North Slope Borough, Alaska 31 May Pluvialis displaying this evening (1900) in my first jaunt around the Meade River tundra. Display call lacks the ringing quality of dominica, and is curtailed a plaintive 2 syllable whistle —— about 1/sec. in a muttonkey. Butterfly flight exaggerated. Other area × vocalizations also. Commonest along ridges. Paired. © obviously duller than ¨. 4 June I reaffirm my above notes about habitat of squatarola - definitely a ridge bound side but some individuals also using lowlands, even lakeshore. Seen one aggressive individual of dominica in which dominica came out winner. 7 June squatarola actually occurs quite regularly in local marshes. Pruoboc Bay, N. Slope, Alaska 22 June I had expected to find P. squat. more commonly than I have so far - in 2 days 2 birds. One was displaying on a pingo in typical flight display - it supplanted a P. dominica. The other fled by a low lake margin. 24 July see Journal. P. squatarola adults conspicuous now on tundra, many in small flocks into low wetlands. A few still broody. MEADE RIVER 18 Aug see journal. Largely unmolted adult squatarola still feeding broods + intraspesifically very aggressive, chasing other squatarola away. Some broods tended by 2 adults. Habitat use widespread but juveniles appear to be in marshy areas. Juveniles plumage tawny rather than P. dominica and white tail patch readily visible. Even though juveniles have fledged adults are still feeding young, mobbing. 18 August It's been 2 days since I heard any broody © squatarola, one hounding a parent jaunt near camp. Then today found flock of 2-4 squatarola juveniles moving around together. Foraging in uplands (?), flying by. This may be the squatarola migration