ML220774591

觀察細節

First observation at 1019. 1 nonadult, 1 unknown. Both migrants. First individual was a nonadult circling without flaps near the raised hill at ca 3x the height of the Scratchgravels. At 1457, saw another GOEA thermaling over the start point at ca 2-3x Scratchgravel height, then gliding N on the same line. Detections (number 15-minute intervals in which the species was detected): 3 flyover(s).