Phenology

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Migration site
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Period
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Year Migration site First Migration site Last
2021
VRS Castricum 25 March     
VRS Castricum 8 May
2020
VRS Castricum 16 March     
VRS Castricum 31 October
2019
VRS Castricum 21 March     
VRS Castricum 30 October
2018
VRS Castricum 14 March     
VRS Castricum 6 October
2017
VRS Castricum 31 March     
VRS Castricum 19 October
2016
VRS Castricum 29 March     
VRS Castricum 17 October
2015
VRS Castricum 15 March     
VRS Castricum 23 October
2014
VRS Castricum 11 March     
VRS Castricum 5 November
2013
VRS Castricum 1 April     
VRS Castricum 19 October
2012
VRS Castricum 23 March     
VRS Castricum 9 October
2011
VRS Castricum 23 March     
VRS Castricum 16 October
2010
VRS Castricum 13 April     
VRS Castricum 6 November
2009
VRS Castricum 2 April     
VRS Castricum 23 October
2008
VRS Castricum 24 June     
VRS Castricum 12 October
2007
VRS Castricum 30 March     
VRS Castricum 26 October
2006
VRS Castricum 9 May     
VRS Castricum 10 November
2005
VRS Castricum 30 April     
VRS Castricum 28 December
2004
VRS Castricum 24 April     
VRS Castricum 18 October
2003
VRS Castricum 7 March     
VRS Castricum 3 October
2002
VRS Castricum 13 March     
VRS Castricum 29 October
2001
VRS Castricum 8 April     
VRS Castricum 3 November
2000
VRS Castricum 10 March     
VRS Castricum 5 November
1999
VRS Castricum 21 March     
VRS Castricum 14 October
1998
VRS Castricum 7 March     
VRS Castricum 3 December
1997
VRS Castricum 10 March     
VRS Castricum 19 October
1996
VRS Castricum 15 April     
VRS Castricum 15 October
1995
VRS Castricum 17 April     
VRS Castricum 25 December
1994
VRS Castricum 12 March     
VRS Castricum 18 October
1993
VRS Castricum 2 August     
VRS Castricum 16 October
1992
VRS Castricum 2 April     
VRS Castricum 27 September
1991
VRS Castricum 1 March     
VRS Castricum 7 October
1990
VRS Castricum 4 May     
VRS Castricum 1 October
1989
VRS Castricum 6 April     
VRS Castricum 20 November
1988
VRS Castricum 17 July     
VRS Castricum 5 October
1987
VRS Castricum 21 October     
VRS Castricum 21 October
1985
VRS Castricum 9 October     
VRS Castricum 9 October
1983
VRS Castricum 21 August     
VRS Castricum 23 September
1982
VRS Castricum 5 September     
VRS Castricum 18 September
1981
VRS Castricum 10 April     
VRS Castricum 21 October
1980
VRS Castricum 31 July     
VRS Castricum 23 September
1979
VRS Castricum 11 August     
VRS Castricum 23 September
1978
VRS Castricum 11 August     
VRS Castricum 9 October
1977
VRS Castricum 3 April     
VRS Castricum 19 September
1976
VRS Castricum 1 March     
VRS Castricum 6 November
1974
VRS Castricum 29 August     
VRS Castricum 15 October
1973
VRS Castricum 19 August     
VRS Castricum 23 September
1972
VRS Castricum 22 September     
VRS Castricum 9 October
1971
VRS Castricum 6 September     
VRS Castricum 8 October
1969
VRS Castricum 24 September     
VRS Castricum 30 September
1968
VRS Castricum 20 October     
VRS Castricum 20 October
1961
VRS Castricum 28 September     
VRS Castricum 28 September
 
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