Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Terschelling, Paal 18 | 9 October | Terschelling, Paal 18 | 13 November | |||||
| 2019 | Terschelling, Paal 18 | 12 October | Terschelling, Paal 18 | 23 October | |||||
| 2018 | Terschelling, Paal 18 | 30 September | Terschelling, Paal 18 | 4 October | |||||
| 2017 | Terschelling, Paal 18 | 22 October | Terschelling, Paal 18 | 23 October | |||||
| 2016 | Terschelling, Paal 18 | 2 October | Terschelling, Paal 18 | 10 October | |||||
| 2015 | Terschelling, Paal 18 | 21 September | Terschelling, Paal 18 | 23 October | |||||
| 2014 | Terschelling, Paal 18 | 28 September | Terschelling, Paal 18 | 15 October | |||||
| 2013 | Terschelling, Paal 18 | 3 October | Terschelling, Paal 18 | 5 October | |||||
| 2012 | Terschelling, Paal 18 | 27 August | Terschelling, Paal 18 | 4 October | |||||
| 2009 | Terschelling, Paal 18 | 6 September | Terschelling, Paal 18 | 7 September | |||||
| 2004 | Terschelling, Paal 18 | 5 October | Terschelling, Paal 18 | 5 October | |||||
| 2003 | Terschelling, Paal 18 | 30 September | Terschelling, Paal 18 | 30 September | |||||
| 2001 | Terschelling, Paal 18 | 5 October | Terschelling, Paal 18 | 6 October | |||||
| 2000 | Terschelling, Paal 18 | 27 September | Terschelling, Paal 18 | 2 October | |||||
| 1999 | Terschelling, Paal 18 | 17 October | Terschelling, Paal 18 | 17 October |
