Holmes,R 1962 Erolia ferruginea 12 june Barrow,Alaska On the wing The 8 made occasional short flights - flying low on the ground - again not more than 6' above the ground - flight was with full wing beat but in two cases there seemed to be a slower - more deliberate - stroke - which may have been the aerial display. Once - as the bird flew - it was sliding a few feet above the ground - giving A sort wings held slightly up - + two sequences of fast vibration (7-3) were given - at the same time - the whine note was uttered several times. - then the bird landed. However, no aerial display - with quivering wings - has been seen. The ground courtship consisted of the 8 raising one wing toward the Q - then both wings, raised - head held up - tail slightly down & fanned out : see later diagram - wings can be held at a greater angle at the upper joints, but so legs extend out.