Figure 3.

Homing flights of bees that had been trained along a hedgerow (bold green line stretching NW to SE) from hive H3 to the feeder (FA). The dotted violet line indicates an irrigation channel. During training the bees flew at a distance of 5–15 m along the hedgerow over 400 m (dotted red line). Two release sites were selected. R3 was 350 m NE of the hedgerow, R4 was 500 m NE of the hedgerow. A total of 23 bees were tested (color marks in the right upper corner of (A,B). (A) Five bees released at R3 flew over different distances along the vector between feeder and hive (dotted green line connecting R3 with the location of the virtual hive, vH3). Two of them performed no vector flight. (B) Five of 13 bees released at R4 chose to fly first towards the hedgerow and then followed it. Seven bees flew along a shortcut directly from the release site to the hive. One flight trajectory (light red line) was rather irregular.