Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Terschelling, Paal 18 | 14 October | Terschelling, Paal 18 | 20 December | |||||
| 2019 | Terschelling, Paal 18 | 22 October | Terschelling, Paal 18 | 22 October | |||||
| 2018 | Terschelling, Paal 18 | 7 October | Terschelling, Paal 18 | 7 October | |||||
| 2017 | Terschelling, Paal 18 | 22 October | Terschelling, Paal 18 | 29 October | |||||
| 2016 | Terschelling, Paal 18 | 19 November | Terschelling, Paal 18 | 22 November | |||||
| 2015 | Terschelling, Paal 18 | 27 September | Terschelling, Paal 18 | 27 September | |||||
| 2014 | Terschelling, Paal 18 | 19 November | Terschelling, Paal 18 | 19 November | |||||
| 2013 | Terschelling, Paal 18 | 30 January | Terschelling, Paal 18 | 29 November | |||||
| 2012 | Terschelling, Paal 18 | 18 November | Terschelling, Paal 18 | 18 November | |||||
| 2011 | Terschelling, Paal 18 | 9 October | Terschelling, Paal 18 | 9 October | |||||
| 2010 | Terschelling, Paal 18 | 28 October | Terschelling, Paal 18 | 18 November | |||||
| 2009 | Terschelling, Paal 18 | 10 November | Terschelling, Paal 18 | 22 November | |||||
| 2008 | Terschelling, Paal 18 | 5 January | Terschelling, Paal 18 | 5 January | |||||
| 2007 | Terschelling, Paal 18 | 3 November | Terschelling, Paal 18 | 3 November | |||||
| 2006 | Terschelling, Paal 18 | 25 December | Terschelling, Paal 18 | 28 December | |||||
| 2004 | Terschelling, Paal 18 | 10 October | Terschelling, Paal 18 | 10 October | |||||
| 2002 | Terschelling, Paal 18 | 10 November | Terschelling, Paal 18 | 23 November | |||||
| 1999 | Terschelling, Paal 18 | 15 October | Terschelling, Paal 18 | 15 October | |||||
| 1997 | Terschelling, Paal 18 | 8 February | Terschelling, Paal 18 | 16 October | |||||
| 1995 | Terschelling, Paal 18 | 25 October | Terschelling, Paal 18 | 25 October | |||||
| 1994 | Terschelling, Paal 18 | 26 December | Terschelling, Paal 18 | 26 December | |||||
| 1993 | Terschelling, Paal 18 | 14 October | Terschelling, Paal 18 | 16 October | |||||
| 1992 | Terschelling, Paal 18 | 22 April | Terschelling, Paal 18 | 1 November | |||||
| 1989 | Terschelling, Paal 18 | 28 January | Terschelling, Paal 18 | 25 November | |||||
| 1988 | Terschelling, Paal 18 | 29 October | Terschelling, Paal 18 | 21 November | |||||
| 1986 | Terschelling, Paal 18 | 13 October | Terschelling, Paal 18 | 12 December | |||||
| 1985 | Terschelling, Paal 18 | 29 October | Terschelling, Paal 18 | 2 November | |||||
| 1982 | Terschelling, Paal 18 | 3 January | Terschelling, Paal 18 | 11 December | |||||
| 1981 | Terschelling, Paal 18 | 22 October | Terschelling, Paal 18 | 30 December | |||||
| 1980 | Terschelling, Paal 18 | 20 October | Terschelling, Paal 18 | 19 December | |||||
| 1979 | Terschelling, Paal 18 | 19 April | Terschelling, Paal 18 | 3 November | |||||
| 1978 | Terschelling, Paal 18 | 14 October | Terschelling, Paal 18 | 14 October | |||||
| 1976 | Terschelling, Paal 18 | 16 January | Terschelling, Paal 18 | 16 January |
