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 9 February     
VRS Castricum 17 September
2020
VRS Castricum 23 April     
VRS Castricum 20 October
2019
VRS Castricum 20 August     
VRS Castricum 12 September
2018
VRS Castricum 13 September     
VRS Castricum 8 November
2017
VRS Castricum 5 August     
VRS Castricum 7 November
2016
VRS Castricum 13 August     
VRS Castricum 24 September
2015
VRS Castricum 9 August     
VRS Castricum 5 November
2012
VRS Castricum 22 July     
VRS Castricum 10 October
2011
VRS Castricum 25 September     
VRS Castricum 22 November
2010
VRS Castricum 6 January     
VRS Castricum 3 July
2009
VRS Castricum 24 October     
VRS Castricum 12 November
2008
VRS Castricum 25 August     
VRS Castricum 20 September
2007
VRS Castricum 6 May     
VRS Castricum 20 November
2006
VRS Castricum 9 September     
VRS Castricum 2 November
2005
VRS Castricum 29 July     
VRS Castricum 17 November
2004
VRS Castricum 8 October     
VRS Castricum 17 October
2003
VRS Castricum 4 May     
VRS Castricum 10 November
2002
VRS Castricum 20 August     
VRS Castricum 5 November
2001
VRS Castricum 2 November     
VRS Castricum 2 December
2000
VRS Castricum 27 July     
VRS Castricum 4 December
1999
VRS Castricum 31 March     
VRS Castricum 24 November
1998
VRS Castricum 17 April     
VRS Castricum 7 December
1997
VRS Castricum 19 October     
VRS Castricum 15 November
1996
VRS Castricum 5 March     
VRS Castricum 24 October
1995
VRS Castricum 30 July     
VRS Castricum 15 October
1994
VRS Castricum 15 August     
VRS Castricum 22 November
1993
VRS Castricum 17 August     
VRS Castricum 9 November
1992
VRS Castricum 24 September     
VRS Castricum 14 November
1991
VRS Castricum 23 July     
VRS Castricum 8 December
1990
VRS Castricum 10 August     
VRS Castricum 19 December
1989
VRS Castricum 22 September     
VRS Castricum 9 December
1988
VRS Castricum 5 September     
VRS Castricum 26 November
1987
VRS Castricum 24 August     
VRS Castricum 29 November
1986
VRS Castricum 23 September     
VRS Castricum 19 November
1985
VRS Castricum 5 January     
VRS Castricum 8 December
1984
VRS Castricum 26 September     
VRS Castricum 18 November
1983
VRS Castricum 5 August     
VRS Castricum 21 November
1982
VRS Castricum 19 September     
VRS Castricum 29 December
1981
VRS Castricum 16 October     
VRS Castricum 27 December
1980
VRS Castricum 7 December     
VRS Castricum 7 December
1979
VRS Castricum 1 January     
VRS Castricum 17 November
1978
VRS Castricum 6 October     
VRS Castricum 21 December
1977
VRS Castricum 20 September     
VRS Castricum 6 December
1976
VRS Castricum 2 September     
VRS Castricum 17 November
1975
VRS Castricum 12 October     
VRS Castricum 20 December
1974
VRS Castricum 8 October     
VRS Castricum 6 November
1973
VRS Castricum 13 September     
VRS Castricum 9 December
1972
VRS Castricum 1 October     
VRS Castricum 27 November
1971
VRS Castricum 22 September     
VRS Castricum 24 November
1970
VRS Castricum 21 September     
VRS Castricum 24 November
1969
VRS Castricum 7 November     
VRS Castricum 7 November
1968
VRS Castricum 8 October     
VRS Castricum 18 November
1967
VRS Castricum 29 September     
VRS Castricum 29 September
1966
VRS Castricum 30 October     
VRS Castricum 3 November
1965
VRS Castricum 26 October     
VRS Castricum 6 November
1964
VRS Castricum 20 October     
VRS Castricum 22 November
1963
VRS Castricum 23 October     
VRS Castricum 3 November
1961
VRS Castricum 9 November     
VRS Castricum 9 November
 
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