Honeyguide initial flight direction relative to bees' nest direction

Column descriptions: GuidingEventID: unique identifier for each guiding event, defined as a bout of guiding by an individual honeyguide, sometimes to more than one bees’ nest. Bearing_Bees: bearing (angle in degrees) from the point where the honeyguide was detected starting guiding behaviour, to the bees' nest. Bearing_40m: bearing (angle in degrees) from the point where the honeyguide was detected starting guiding behaviour, to the point reached after the first 40 m of travel. Bearing_Difference: Bearing_40m relative to Bearing_Bees, with the latter set at zero (angle in degrees). Note: Guiding events accompanied by a non-natural acoustic cue, and guiding events that led to a bees' nest already known to the observers, are excluded (see Materials and Methods).