Fig. 3

Fitted relationships (Table 1) for the most meaningful variables (top left: tailwind; top right: time of departure) describing the probability of departure of juvenile greater flamingos (n = 30). The bottom panel shows the probability of departure in relation to headwind/tailwind speed according to migration distance: flamingos migrating longer distances had a higher probability of selecting stronger tailwinds at departure than those migrating shorter distances (Additional file 1: Table S6). In the top left plot, the purple dots represent the raw data of headwind/tailwind condition experienced during migration departure, while the blue dots represent conditions three days prior to the departure