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| Site | total winter heading | initial spring heading | total spring heading |
| Ottenby | 230.12±21.45 | 41.89±35.38 | 53.33±22.89 |
| Radolfzell | – | 44.37±16.44 | 39.64±24.24 |
Initial and total headings for both winter and spring migration. For winter migration, only total headings are given, as often not enough data points were available to distinguish an initial heading. Headings are given as mean and standard deviation.
