Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Terschelling, Paal 18 | 28 September | Terschelling, Paal 18 | 5 November | |||||
| 2019 | Terschelling, Paal 18 | 12 October | Terschelling, Paal 18 | 24 October | |||||
| 2018 | Terschelling, Paal 18 | 8 October | Terschelling, Paal 18 | 14 October | |||||
| 2017 | Terschelling, Paal 18 | 8 October | Terschelling, Paal 18 | 26 October | |||||
| 2015 | Terschelling, Paal 18 | 26 September | Terschelling, Paal 18 | 26 September | |||||
| 2014 | Terschelling, Paal 18 | 25 September | Terschelling, Paal 18 | 15 October | |||||
| 2013 | Terschelling, Paal 18 | 9 September | Terschelling, Paal 18 | 20 October | |||||
| 2012 | Terschelling, Paal 18 | 18 August | Terschelling, Paal 18 | 4 October | |||||
| 2011 | Terschelling, Paal 18 | 1 September | Terschelling, Paal 18 | 1 September | |||||
| 2010 | Terschelling, Paal 18 | 25 October | Terschelling, Paal 18 | 28 October | |||||
| 2009 | Terschelling, Paal 18 | 5 September | Terschelling, Paal 18 | 3 October | |||||
| 2008 | Terschelling, Paal 18 | 19 September | Terschelling, Paal 18 | 28 September | |||||
| 2007 | Terschelling, Paal 18 | 20 October | Terschelling, Paal 18 | 20 October | |||||
| 2004 | Terschelling, Paal 18 | 5 October | Terschelling, Paal 18 | 5 October | |||||
| 2001 | Terschelling, Paal 18 | 6 October | Terschelling, Paal 18 | 6 October | |||||
| 2000 | Terschelling, Paal 18 | 28 September | Terschelling, Paal 18 | 7 October |
