Fig. 6

Influence of timing and wind direction on white stork flight direction. Influence of zonal wind speed (m/s) on white stork longitudinal speed (m/s) when crossing migratory leg 3 (from the Atlas Mountains until south of the Sahara Desert), with a significant interaction with timing of start migratory leg 3. Data was modelled using a linear mixed model, with bird id and year as random factors. Blue and brown lines indicate the model prediction for the earliest (22nd July) and latest (3rd October) bird, respectively, and shading represents 95% confidence intervals. Points show the raw data, with individuals starting leg 3 on a date earlier or later than the median date (2nd quartile) coloured as light blue and light brown, respectively