Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Terschelling, Paal 18 | 30 September | Terschelling, Paal 18 | 15 November | |||||
| 2019 | Terschelling, Paal 18 | 15 October | Terschelling, Paal 18 | 24 October | |||||
| 2018 | Terschelling, Paal 18 | 13 October | Terschelling, Paal 18 | 14 October | |||||
| 2017 | Terschelling, Paal 18 | 23 October | Terschelling, Paal 18 | 27 October | |||||
| 2015 | Terschelling, Paal 18 | 11 March | Terschelling, Paal 18 | 11 March | |||||
| 2013 | Terschelling, Paal 18 | 21 March | Terschelling, Paal 18 | 22 March | |||||
| 2010 | Terschelling, Paal 18 | 25 October | Terschelling, Paal 18 | 25 October | |||||
| 2009 | Terschelling, Paal 18 | 5 September | Terschelling, Paal 18 | 14 October | |||||
| 2008 | Terschelling, Paal 18 | 19 October | Terschelling, Paal 18 | 9 November | |||||
| 2007 | Terschelling, Paal 18 | 16 October | Terschelling, Paal 18 | 20 October |
