Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Terschelling, Paal 18 | 14 October | Terschelling, Paal 18 | 14 October | |||||
| 2019 | Terschelling, Paal 18 | 18 October | Terschelling, Paal 18 | 24 October | |||||
| 2017 | Terschelling, Paal 18 | 7 October | Terschelling, Paal 18 | 25 October | |||||
| 2014 | Terschelling, Paal 18 | 15 October | Terschelling, Paal 18 | 15 October | |||||
| 2010 | Terschelling, Paal 18 | 28 October | Terschelling, Paal 18 | 28 October |
