Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Terschelling, Paal 18 | 24 September | Terschelling, Paal 18 | 19 November | |||||
| 2019 | Terschelling, Paal 18 | 18 August | Terschelling, Paal 18 | 18 November | |||||
| 2018 | Terschelling, Paal 18 | 21 September | Terschelling, Paal 18 | 24 October | |||||
| 2017 | Terschelling, Paal 18 | 14 September | Terschelling, Paal 18 | 26 November | |||||
| 2015 | Terschelling, Paal 18 | 19 September | Terschelling, Paal 18 | 25 September | |||||
| 2014 | Terschelling, Paal 18 | 27 September | Terschelling, Paal 18 | 22 October | |||||
| 2013 | Terschelling, Paal 18 | 9 October | Terschelling, Paal 18 | 10 October | |||||
| 2012 | Terschelling, Paal 18 | 14 January | Terschelling, Paal 18 | 8 October | |||||
| 2011 | Terschelling, Paal 18 | 30 August | Terschelling, Paal 18 | 25 November | |||||
| 2010 | Terschelling, Paal 18 | 16 September | Terschelling, Paal 18 | 6 November | |||||
| 2009 | Terschelling, Paal 18 | 30 August | Terschelling, Paal 18 | 13 October | |||||
| 2008 | Terschelling, Paal 18 | 7 September | Terschelling, Paal 18 | 4 October | |||||
| 2007 | Terschelling, Paal 18 | 4 September | Terschelling, Paal 18 | 30 December | |||||
| 2006 | Terschelling, Paal 18 | 10 September | Terschelling, Paal 18 | 12 November | |||||
| 2005 | Terschelling, Paal 18 | 29 September | Terschelling, Paal 18 | 20 November | |||||
| 2004 | Terschelling, Paal 18 | 22 September | Terschelling, Paal 18 | 14 November | |||||
| 2003 | Terschelling, Paal 18 | 23 September | Terschelling, Paal 18 | 11 October | |||||
| 2002 | Terschelling, Paal 18 | 26 September | Terschelling, Paal 18 | 9 November | |||||
| 2001 | Terschelling, Paal 18 | 10 October | Terschelling, Paal 18 | 1 November | |||||
| 2000 | Terschelling, Paal 18 | 6 October | Terschelling, Paal 18 | 30 December | |||||
| 1999 | Terschelling, Paal 18 | 4 October | Terschelling, Paal 18 | 17 October | |||||
| 1998 | Terschelling, Paal 18 | 11 October | Terschelling, Paal 18 | 12 October | |||||
| 1997 | Terschelling, Paal 18 | 11 October | Terschelling, Paal 18 | 12 October | |||||
| 1996 | Terschelling, Paal 18 | 1 October | Terschelling, Paal 18 | 6 October | |||||
| 1994 | Terschelling, Paal 18 | 30 August | Terschelling, Paal 18 | 1 October | |||||
| 1993 | Terschelling, Paal 18 | 13 October | Terschelling, Paal 18 | 13 October | |||||
| 1992 | Terschelling, Paal 18 | 4 September | Terschelling, Paal 18 | 5 September | |||||
| 1991 | Terschelling, Paal 18 | 9 September | Terschelling, Paal 18 | 10 September | |||||
| 1990 | Terschelling, Paal 18 | 9 September | Terschelling, Paal 18 | 9 September | |||||
| 1989 | Terschelling, Paal 18 | 7 October | Terschelling, Paal 18 | 15 October | |||||
| 1988 | Terschelling, Paal 18 | 29 September | Terschelling, Paal 18 | 13 December | |||||
| 1987 | Terschelling, Paal 18 | 26 September | Terschelling, Paal 18 | 22 October | |||||
| 1985 | Terschelling, Paal 18 | 8 September | Terschelling, Paal 18 | 3 November | |||||
| 1984 | Terschelling, Paal 18 | 2 October | Terschelling, Paal 18 | 2 October | |||||
| 1983 | Terschelling, Paal 18 | 22 September | Terschelling, Paal 18 | 9 October | |||||
| 1981 | Terschelling, Paal 18 | 26 September | Terschelling, Paal 18 | 28 October | |||||
| 1980 | Terschelling, Paal 18 | 15 September | Terschelling, Paal 18 | 2 October | |||||
| 1979 | Terschelling, Paal 18 | 9 August | Terschelling, Paal 18 | 9 August | |||||
| 1978 | Terschelling, Paal 18 | 8 August | Terschelling, Paal 18 | 24 August | |||||
| 1972 | Terschelling, Paal 18 | 8 August | Terschelling, Paal 18 | 8 August |
