Phenology

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Migration site
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Year Migration site First Migration site Last
2021
VRS Castricum 22 April     
VRS Castricum 27 April
2019
VRS Castricum 30 October     
VRS Castricum 30 October
2017
VRS Castricum 22 January     
VRS Castricum 17 November
2014
VRS Castricum 26 December     
VRS Castricum 26 December
2013
VRS Castricum 21 January     
VRS Castricum 22 November
2011
VRS Castricum 23 February     
VRS Castricum 22 November
2010
VRS Castricum 4 January     
VRS Castricum 30 January
2008
VRS Castricum 11 February     
VRS Castricum 11 February
2005
VRS Castricum 3 March     
VRS Castricum 3 March
2003
VRS Castricum 8 January     
VRS Castricum 14 February
2001
VRS Castricum 20 October     
VRS Castricum 20 October
2000
VRS Castricum 12 March     
VRS Castricum 23 December
1998
VRS Castricum 8 November     
VRS Castricum 8 November
1996
VRS Castricum 6 January     
VRS Castricum 12 October
1995
VRS Castricum 8 December     
VRS Castricum 29 December
1993
VRS Castricum 2 January     
VRS Castricum 2 January
1991
VRS Castricum 29 July     
VRS Castricum 29 July
1988
VRS Castricum 4 October     
VRS Castricum 1 November
1987
VRS Castricum 30 January     
VRS Castricum 7 December
1986
VRS Castricum 16 November     
VRS Castricum 16 November
1985
VRS Castricum 22 October     
VRS Castricum 22 October
1984
VRS Castricum 7 August     
VRS Castricum 27 December
1983
VRS Castricum 3 August     
VRS Castricum 21 October
1982
VRS Castricum 2 April     
VRS Castricum 5 November
1981
VRS Castricum 7 May     
VRS Castricum 11 December
1980
VRS Castricum 16 October     
VRS Castricum 30 November
1979
VRS Castricum 5 August     
VRS Castricum 6 October
1978
VRS Castricum 23 September     
VRS Castricum 29 November
1977
VRS Castricum 20 August     
VRS Castricum 7 October
1975
VRS Castricum 5 October     
VRS Castricum 5 October
1974
VRS Castricum 30 September     
VRS Castricum 6 October
1973
VRS Castricum 8 September     
VRS Castricum 8 September
1972
VRS Castricum 8 October     
VRS Castricum 8 October
1970
VRS Castricum 28 September     
VRS Castricum 17 October
1968
VRS Castricum 2 October     
VRS Castricum 2 October
1967
VRS Castricum 26 September     
VRS Castricum 30 September
1966
VRS Castricum 18 September     
VRS Castricum 1 October
1964
VRS Castricum 25 September     
VRS Castricum 1 October
1963
VRS Castricum 14 October     
VRS Castricum 14 October
1962
VRS Castricum 23 September     
VRS Castricum 2 October
1961
VRS Castricum 30 October     
VRS Castricum 30 October
 
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