Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Terschelling, Paal 18 | 24 September | Terschelling, Paal 18 | 15 November | |||||
| 2019 | Terschelling, Paal 18 | 15 October | Terschelling, Paal 18 | 15 October | |||||
| 2018 | Terschelling, Paal 18 | 24 October | Terschelling, Paal 18 | 24 October | |||||
| 2017 | Terschelling, Paal 18 | 27 October | Terschelling, Paal 18 | 27 October | |||||
| 2014 | Terschelling, Paal 18 | 9 November | Terschelling, Paal 18 | 9 November | |||||
| 2013 | Terschelling, Paal 18 | 10 October | Terschelling, Paal 18 | 10 October | |||||
| 2012 | Terschelling, Paal 18 | 30 September | Terschelling, Paal 18 | 30 September | |||||
| 2011 | Terschelling, Paal 18 | 31 August | Terschelling, Paal 18 | 14 October | |||||
| 2010 | Terschelling, Paal 18 | 6 November | Terschelling, Paal 18 | 6 November | |||||
| 2008 | Terschelling, Paal 18 | 13 November | Terschelling, Paal 18 | 13 November | |||||
| 2007 | Terschelling, Paal 18 | 18 November | Terschelling, Paal 18 | 18 November | |||||
| 2004 | Terschelling, Paal 18 | 6 October | Terschelling, Paal 18 | 6 October | |||||
| 2003 | Terschelling, Paal 18 | 30 September | Terschelling, Paal 18 | 4 October | |||||
| 2001 | Terschelling, Paal 18 | 4 October | Terschelling, Paal 18 | 1 November | |||||
| 1993 | Terschelling, Paal 18 | 11 October | Terschelling, Paal 18 | 14 October | |||||
| 1992 | Terschelling, Paal 18 | 22 October | Terschelling, Paal 18 | 22 October | |||||
| 1972 | Terschelling, Paal 18 | 25 November | Terschelling, Paal 18 | 25 November |
