Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Terschelling, Paal 18 | 16 November | Terschelling, Paal 18 | 16 November | |||||
| 2019 | Terschelling, Paal 18 | 11 October | Terschelling, Paal 18 | 15 November | |||||
| 2018 | Terschelling, Paal 18 | 4 October | Terschelling, Paal 18 | 4 October | |||||
| 2017 | Terschelling, Paal 18 | 2 October | Terschelling, Paal 18 | 2 October | |||||
| 2013 | Terschelling, Paal 18 | 28 January | Terschelling, Paal 18 | 1 February | |||||
| 2012 | Terschelling, Paal 18 | 18 November | Terschelling, Paal 18 | 18 November | |||||
| 2011 | Terschelling, Paal 18 | 13 September | Terschelling, Paal 18 | 13 September | |||||
| 2010 | Terschelling, Paal 18 | 7 November | Terschelling, Paal 18 | 7 November | |||||
| 2009 | Terschelling, Paal 18 | 22 November | Terschelling, Paal 18 | 22 November | |||||
| 2008 | Terschelling, Paal 18 | 5 January | Terschelling, Paal 18 | 5 January | |||||
| 2005 | Terschelling, Paal 18 | 11 September | Terschelling, Paal 18 | 11 September | |||||
| 1992 | Terschelling, Paal 18 | 1 November | Terschelling, Paal 18 | 1 November | |||||
| 1989 | Terschelling, Paal 18 | 29 January | Terschelling, Paal 18 | 18 February | |||||
| 1983 | Terschelling, Paal 18 | 14 October | Terschelling, Paal 18 | 14 October | |||||
| 1982 | Terschelling, Paal 18 | 30 October | Terschelling, Paal 18 | 30 October | |||||
| 1981 | Terschelling, Paal 18 | 23 October | Terschelling, Paal 18 | 23 October | |||||
| 1979 | Terschelling, Paal 18 | 21 October | Terschelling, Paal 18 | 21 October |
