Phenology

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Year Migration site First Migration site Last
2021
VRS Castricum 3 July     
VRS Castricum 3 July
2019
VRS Castricum 15 October     
VRS Castricum 23 October
2018
VRS Castricum 4 April     
VRS Castricum 4 April
2016
VRS Castricum 24 October     
VRS Castricum 24 October
2015
VRS Castricum 25 October     
VRS Castricum 26 October
2013
VRS Castricum 10 April     
VRS Castricum 25 October
2012
VRS Castricum 24 July     
VRS Castricum 22 October
2011
VRS Castricum 1 October     
VRS Castricum 1 October
2010
VRS Castricum 9 July     
VRS Castricum 7 November
2009
VRS Castricum 31 October     
VRS Castricum 31 October
2007
VRS Castricum 12 May     
VRS Castricum 18 November
2006
VRS Castricum 7 August     
VRS Castricum 7 August
2005
VRS Castricum 29 March     
VRS Castricum 29 March
2004
VRS Castricum 3 August     
VRS Castricum 9 August
2003
VRS Castricum 29 March     
VRS Castricum 25 September
2001
VRS Castricum 31 March     
VRS Castricum 23 October
2000
VRS Castricum 2 April     
VRS Castricum 21 October
1999
VRS Castricum 13 March     
VRS Castricum 5 April
1998
VRS Castricum 29 March     
VRS Castricum 19 October
1997
VRS Castricum 13 March     
VRS Castricum 17 July
1996
VRS Castricum 7 April     
VRS Castricum 18 October
1995
VRS Castricum 28 June     
VRS Castricum 22 October
1994
VRS Castricum 8 May     
VRS Castricum 5 November
1993
VRS Castricum 10 October     
VRS Castricum 10 October
1992
VRS Castricum 6 April     
VRS Castricum 24 July
1991
VRS Castricum 23 July     
VRS Castricum 21 October
1990
VRS Castricum 15 July     
VRS Castricum 23 October
1989
VRS Castricum 28 October     
VRS Castricum 28 October
1988
VRS Castricum 6 August     
VRS Castricum 6 August
1987
VRS Castricum 16 September     
VRS Castricum 19 October
1986
VRS Castricum 9 August     
VRS Castricum 7 November
1985
VRS Castricum 20 October     
VRS Castricum 20 October
1984
VRS Castricum 21 October     
VRS Castricum 21 October
1982
VRS Castricum 14 April     
VRS Castricum 14 April
1981
VRS Castricum 15 April     
VRS Castricum 15 April
1979
VRS Castricum 5 October     
VRS Castricum 14 October
1978
VRS Castricum 9 October     
VRS Castricum 9 October
1977
VRS Castricum 28 October     
VRS Castricum 17 November
1976
VRS Castricum 22 September     
VRS Castricum 25 October
1975
VRS Castricum 30 October     
VRS Castricum 30 October
1974
VRS Castricum 21 October     
VRS Castricum 21 October
1972
VRS Castricum 19 October     
VRS Castricum 19 October
1970
VRS Castricum 11 October     
VRS Castricum 11 October
1968
VRS Castricum 5 October     
VRS Castricum 26 October
 
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