Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Terschelling, Paal 18 | 12 January | Terschelling, Paal 18 | 26 December | |||||
| 2019 | Terschelling, Paal 18 | 16 September | Terschelling, Paal 18 | 15 December | |||||
| 2018 | Terschelling, Paal 18 | 4 January | Terschelling, Paal 18 | 11 November | |||||
| 2017 | Terschelling, Paal 18 | 26 October | Terschelling, Paal 18 | 26 November | |||||
| 2016 | Terschelling, Paal 18 | 19 November | Terschelling, Paal 18 | 20 November | |||||
| 2015 | Terschelling, Paal 18 | 23 October | Terschelling, Paal 18 | 23 October | |||||
| 2014 | Terschelling, Paal 18 | 28 January | Terschelling, Paal 18 | 9 November | |||||
| 2013 | Terschelling, Paal 18 | 12 January | Terschelling, Paal 18 | 24 November | |||||
| 2012 | Terschelling, Paal 18 | 15 January | Terschelling, Paal 18 | 17 November | |||||
| 2011 | Terschelling, Paal 18 | 17 September | Terschelling, Paal 18 | 24 November | |||||
| 2010 | Terschelling, Paal 18 | 14 August | Terschelling, Paal 18 | 11 December | |||||
| 2009 | Terschelling, Paal 18 | 10 October | Terschelling, Paal 18 | 22 November | |||||
| 2008 | Terschelling, Paal 18 | 2 January | Terschelling, Paal 18 | 16 November | |||||
| 2007 | Terschelling, Paal 18 | 8 October | Terschelling, Paal 18 | 30 December | |||||
| 2006 | Terschelling, Paal 18 | 22 December | Terschelling, Paal 18 | 28 December | |||||
| 2004 | Terschelling, Paal 18 | 3 October | Terschelling, Paal 18 | 13 October | |||||
| 2003 | Terschelling, Paal 18 | 11 October | Terschelling, Paal 18 | 7 December | |||||
| 2001 | Terschelling, Paal 18 | 5 October | Terschelling, Paal 18 | 31 December | |||||
| 1999 | Terschelling, Paal 18 | 15 October | Terschelling, Paal 18 | 17 October | |||||
| 1997 | Terschelling, Paal 18 | 4 October | Terschelling, Paal 18 | 16 October | |||||
| 1994 | Terschelling, Paal 18 | 18 October | Terschelling, Paal 18 | 18 October | |||||
| 1993 | Terschelling, Paal 18 | 18 October | Terschelling, Paal 18 | 18 October |
