Figure 5.

Hovering pauses in forward flight occurred frequently throughout the upper half of the chamber. (a) A representative trajectory from the perch to the feeder in which the animal voluntarily paused four times to hover. This trajectory is from a control treatment. The region within 17 cm of the perch and feeder is excluded. (b) A zoomed-in view of the pause indicated by the black box in (a). Colour indicates time, starting with the onset (dark) and progressing to the end (magenta, normalized) of the hover bout. (c) All hovering bouts in the study are shown in both a top view (lateral versus lengthwise position) and cross-section view (altitude versus lateral position) of the chamber.