Deviations from home, short-term correlation dimensions and efficiencies for the various routes.

Number of complete tracks is given in parentheses if different; Vector: for North and South ‘vector’ indicates the mean vector based on the bearings as seen from home when the birds enter the 25 km radius around the loft; for the routes and corridors, it indicates the mean vector of the bearings at the 20 km radius (see text). The median of the correlation dimension, the 1st and 3rd quartiles qu1, qu3 and the range of the correlation dimension are given for all tracks, the respective data for efficiency for all complete tracks. Asterisks at the data from the NE-routes and SW-corridor indicate significant differences between the direct and the deviating routes. - Significance levels by the Mann Whitney U-test:**, p*, pDeviations from home, short-term correlation dimensions and efficiencies for the various routes.