Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Terschelling, Paal 18 | 27 September | Terschelling, Paal 18 | 15 October | |||||
| 2019 | Terschelling, Paal 18 | 14 October | Terschelling, Paal 18 | 20 October | |||||
| 2018 | Terschelling, Paal 18 | 10 September | Terschelling, Paal 18 | 10 September | |||||
| 2015 | Terschelling, Paal 18 | 11 March | Terschelling, Paal 18 | 11 March | |||||
| 2014 | Terschelling, Paal 18 | 11 October | Terschelling, Paal 18 | 15 October | |||||
| 2013 | Terschelling, Paal 18 | 22 March | Terschelling, Paal 18 | 22 March | |||||
| 2012 | Terschelling, Paal 18 | 18 August | Terschelling, Paal 18 | 29 August | |||||
| 2011 | Terschelling, Paal 18 | 27 August | Terschelling, Paal 18 | 27 August | |||||
| 2007 | Terschelling, Paal 18 | 5 September | Terschelling, Paal 18 | 5 September | |||||
| 2000 | Terschelling, Paal 18 | 30 September | Terschelling, Paal 18 | 30 September |
