Duration of departure/arrival at sunrise/sunset during different seasons and predator presence/absence.

<p>The effect of time of day and season (A) and the effect of time of day and predator presence (B) on the duration of departure from/arrival at the roost (error bars are 95% CIs about the individual means). Significant pairwise comparisons based on Tukey’s tests are marked with different letters (c>b>a).