Phenology

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Migration site
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Period
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Year Migration site First Migration site Last
2019
VRS Castricum 22 November     
VRS Castricum 22 November
2018
VRS Castricum 17 November     
VRS Castricum 23 November
2015
VRS Castricum 12 November     
VRS Castricum 12 November
2010
VRS Castricum 26 September     
VRS Castricum 21 December
2004
VRS Castricum 30 September     
VRS Castricum 30 September
2002
VRS Castricum 5 December     
VRS Castricum 5 December
2001
VRS Castricum 6 October     
VRS Castricum 27 November
2000
VRS Castricum 24 September     
VRS Castricum 24 September
1999
VRS Castricum 25 October     
VRS Castricum 15 November
1998
VRS Castricum 11 October     
VRS Castricum 14 November
1997
VRS Castricum 3 November     
VRS Castricum 19 November
1996
VRS Castricum 22 October     
VRS Castricum 14 November
1995
VRS Castricum 6 October     
VRS Castricum 2 November
1994
VRS Castricum 16 October     
VRS Castricum 5 November
1993
VRS Castricum 15 October     
VRS Castricum 17 November
1992
VRS Castricum 20 April     
VRS Castricum 8 November
1991
VRS Castricum 6 March     
VRS Castricum 20 October
1990
VRS Castricum 30 September     
VRS Castricum 30 November
1989
VRS Castricum 12 October     
VRS Castricum 21 November
1988
VRS Castricum 4 October     
VRS Castricum 19 November
1987
VRS Castricum 7 January     
VRS Castricum 8 November
1986
VRS Castricum 24 September     
VRS Castricum 2 December
1985
VRS Castricum 3 January     
VRS Castricum 30 December
1984
VRS Castricum 28 September     
VRS Castricum 2 December
1983
VRS Castricum 28 October     
VRS Castricum 10 November
1982
VRS Castricum 8 January     
VRS Castricum 8 January
1981
VRS Castricum 29 October     
VRS Castricum 25 December
1979
VRS Castricum 24 January     
VRS Castricum 25 December
1978
VRS Castricum 21 October     
VRS Castricum 30 December
1977
VRS Castricum 15 October     
VRS Castricum 4 December
1976
VRS Castricum 8 October     
VRS Castricum 30 December
1975
VRS Castricum 9 October     
VRS Castricum 14 December
1974
VRS Castricum 2 October     
VRS Castricum 25 October
1973
VRS Castricum 1 November     
VRS Castricum 9 December
1972
VRS Castricum 1 October     
VRS Castricum 25 November
1971
VRS Castricum 25 October     
VRS Castricum 1 December
1970
VRS Castricum 4 January     
VRS Castricum 26 December
1969
VRS Castricum 7 November     
VRS Castricum 22 November
1968
VRS Castricum 28 September     
VRS Castricum 28 December
1967
VRS Castricum 12 October     
VRS Castricum 10 November
1966
VRS Castricum 5 October     
VRS Castricum 20 November
1965
VRS Castricum 19 October     
VRS Castricum 11 November
1964
VRS Castricum 1 October     
VRS Castricum 10 November
1963
VRS Castricum 7 October     
VRS Castricum 31 October
1962
VRS Castricum 25 September     
VRS Castricum 11 November
 
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