Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Terschelling, Paal 18 | 28 January | Terschelling, Paal 18 | 28 January | |||||
| 2020 | Terschelling, Paal 18 | 17 September | Terschelling, Paal 18 | 24 December | |||||
| 2019 | Terschelling, Paal 18 | 29 January | Terschelling, Paal 18 | 14 December | |||||
| 2018 | Terschelling, Paal 18 | 22 January | Terschelling, Paal 18 | 24 October | |||||
| 2017 | Terschelling, Paal 18 | 12 September | Terschelling, Paal 18 | 25 November | |||||
| 2016 | Terschelling, Paal 18 | 21 August | Terschelling, Paal 18 | 22 November | |||||
| 2015 | Terschelling, Paal 18 | 24 January | Terschelling, Paal 18 | 23 October | |||||
| 2014 | Terschelling, Paal 18 | 25 September | Terschelling, Paal 18 | 21 November | |||||
| 2013 | Terschelling, Paal 18 | 12 January | Terschelling, Paal 18 | 10 October | |||||
| 2012 | Terschelling, Paal 18 | 15 January | Terschelling, Paal 18 | 18 November | |||||
| 2011 | Terschelling, Paal 18 | 17 September | Terschelling, Paal 18 | 13 November | |||||
| 2010 | Terschelling, Paal 18 | 8 October | Terschelling, Paal 18 | 18 November | |||||
| 2009 | Terschelling, Paal 18 | 6 September | Terschelling, Paal 18 | 22 November | |||||
| 2008 | Terschelling, Paal 18 | 5 January | Terschelling, Paal 18 | 9 November | |||||
| 2007 | Terschelling, Paal 18 | 10 October | Terschelling, Paal 18 | 20 October | |||||
| 2006 | Terschelling, Paal 18 | 4 October | Terschelling, Paal 18 | 28 December | |||||
| 2005 | Terschelling, Paal 18 | 10 September | Terschelling, Paal 18 | 11 September | |||||
| 2004 | Terschelling, Paal 18 | 5 October | Terschelling, Paal 18 | 13 October | |||||
| 2003 | Terschelling, Paal 18 | 9 October | Terschelling, Paal 18 | 9 October | |||||
| 2002 | Terschelling, Paal 18 | 15 September | Terschelling, Paal 18 | 31 December | |||||
| 2000 | Terschelling, Paal 18 | 27 September | Terschelling, Paal 18 | 13 October | |||||
| 1999 | Terschelling, Paal 18 | 5 October | Terschelling, Paal 18 | 19 October | |||||
| 1996 | Terschelling, Paal 18 | 21 September | Terschelling, Paal 18 | 22 September | |||||
| 1995 | Terschelling, Paal 18 | 22 October | Terschelling, Paal 18 | 25 October | |||||
| 1994 | Terschelling, Paal 18 | 2 September | Terschelling, Paal 18 | 8 October | |||||
| 1993 | Terschelling, Paal 18 | 16 September | Terschelling, Paal 18 | 14 October | |||||
| 1992 | Terschelling, Paal 18 | 4 September | Terschelling, Paal 18 | 1 November | |||||
| 1991 | Terschelling, Paal 18 | 15 September | Terschelling, Paal 18 | 4 November | |||||
| 1990 | Terschelling, Paal 18 | 5 September | Terschelling, Paal 18 | 16 September | |||||
| 1989 | Terschelling, Paal 18 | 20 October | Terschelling, Paal 18 | 20 October | |||||
| 1988 | Terschelling, Paal 18 | 24 November | Terschelling, Paal 18 | 24 November | |||||
| 1987 | Terschelling, Paal 18 | 4 October | Terschelling, Paal 18 | 22 October | |||||
| 1986 | Terschelling, Paal 18 | 8 December | Terschelling, Paal 18 | 8 December | |||||
| 1985 | Terschelling, Paal 18 | 29 October | Terschelling, Paal 18 | 30 October | |||||
| 1984 | Terschelling, Paal 18 | 30 September | Terschelling, Paal 18 | 2 October | |||||
| 1983 | Terschelling, Paal 18 | 22 September | Terschelling, Paal 18 | 16 October | |||||
| 1982 | Terschelling, Paal 18 | 30 September | Terschelling, Paal 18 | 6 November | |||||
| 1981 | Terschelling, Paal 18 | 15 September | Terschelling, Paal 18 | 28 October | |||||
| 1980 | Terschelling, Paal 18 | 11 September | Terschelling, Paal 18 | 22 October | |||||
| 1979 | Terschelling, Paal 18 | 27 September | Terschelling, Paal 18 | 1 November | |||||
| 1978 | Terschelling, Paal 18 | 20 August | Terschelling, Paal 18 | 14 October | |||||
| 1976 | Terschelling, Paal 18 | 12 April | Terschelling, Paal 18 | 12 April | |||||
| 1975 | Terschelling, Paal 18 | 7 September | Terschelling, Paal 18 | 7 September |
