RTH 1964 3. S. fuscorollis 8 June Barrow, Alaska alpina or bairdii - but more flaggy - it covers < green arc -(This needs checking from < different <- Curves did not appear to be down-curve in the same manner as alpina's). Stayed at 100'. Then dropped suddenly - about straight down - The glide was a sharp V, landed, kept 1 wing raised for 2 sec. Then lowered it. Late, Mundi was feeding on a south slope the ridge - Suddenly took flight then south low over the tundra. Encounter another bird - (a pair) - They flew apart for 200 sec., at 41 feet i present - he then set his wings V + both landed (The probity was given to say) - but was too far to hear. As I landed - I waved my left arm towards the Indi (4?) - he pre-cocked tail, broad ploy up (is not horizontal with body) feared 4 - 5 flashed 1st to left over to a vertical (but turned it to follow position) then right. - level was flashed about 37 - (three time it reached the vertical, it was held there manually then lowered). Later a 30' aerial display note - some was dis continuous, usually