Fig. 3

Timing of arrival compared to ring recovery data. The scatterplots show how the delay of tagged wigeons relative to ring recovery data changes of longitude. Points represent the measured \(\Delta {\text{arrival}}_{ring}\), the lines and shaded areas show the estimates and 95% CIs for the effect of longitude for the respective ringing scheme. Three three panels show the data and model estimates for the ringing schemes of a Arnhem, b London, and c Moscow, respectively. Vertical lines and labels provide reference longitudes for locations along the migration corridor of tracked wigeons