Phenology

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Migration site
Species
Period
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Year Migration site First Migration site Last
2021
VRS Castricum 6 September     
VRS Castricum 6 September
2020
VRS Castricum 17 June     
VRS Castricum 22 June
2019
VRS Castricum 12 June     
VRS Castricum 28 August
2018
VRS Castricum 1 August     
VRS Castricum 1 August
2015
VRS Castricum 30 June     
VRS Castricum 2 August
2014
VRS Castricum 6 June     
VRS Castricum 22 June
2013
VRS Castricum 25 June     
VRS Castricum 2 July
2012
VRS Castricum 10 June     
VRS Castricum 5 July
2011
VRS Castricum 7 June     
VRS Castricum 5 July
2010
VRS Castricum 4 June     
VRS Castricum 22 June
2009
VRS Castricum 17 March     
VRS Castricum 28 September
2008
VRS Castricum 1 July     
VRS Castricum 30 November
2007
VRS Castricum 8 June     
VRS Castricum 26 September
2006
VRS Castricum 16 June     
VRS Castricum 16 October
2005
VRS Castricum 26 January     
VRS Castricum 13 October
2004
VRS Castricum 23 March     
VRS Castricum 16 September
2003
VRS Castricum 21 April     
VRS Castricum 14 October
2002
VRS Castricum 30 March     
VRS Castricum 2 October
2001
VRS Castricum 16 July     
VRS Castricum 19 October
2000
VRS Castricum 26 March     
VRS Castricum 13 October
1999
VRS Castricum 16 July     
VRS Castricum 11 October
1998
VRS Castricum 28 March     
VRS Castricum 17 November
1997
VRS Castricum 13 July     
VRS Castricum 21 October
1996
VRS Castricum 14 July     
VRS Castricum 23 October
1995
VRS Castricum 27 July     
VRS Castricum 13 September
1994
VRS Castricum 19 July     
VRS Castricum 15 December
1993
VRS Castricum 8 August     
VRS Castricum 9 September
1992
VRS Castricum 5 April     
VRS Castricum 22 August
1991
VRS Castricum 18 July     
VRS Castricum 5 October
1990
VRS Castricum 27 March     
VRS Castricum 2 October
1989
VRS Castricum 16 June     
VRS Castricum 17 June
1988
VRS Castricum 30 September     
VRS Castricum 30 September
1986
VRS Castricum 6 August     
VRS Castricum 26 September
1985
VRS Castricum 15 August     
VRS Castricum 27 October
1984
VRS Castricum 3 August     
VRS Castricum 30 September
1983
VRS Castricum 7 August     
VRS Castricum 28 August
1982
VRS Castricum 15 August     
VRS Castricum 18 October
1981
VRS Castricum 5 April     
VRS Castricum 7 November
1980
VRS Castricum 1 August     
VRS Castricum 5 December
1979
VRS Castricum 2 August     
VRS Castricum 23 September
1978
VRS Castricum 8 August     
VRS Castricum 9 August
1977
VRS Castricum 5 August     
VRS Castricum 18 September
1976
VRS Castricum 21 August     
VRS Castricum 21 August
1975
VRS Castricum 10 August     
VRS Castricum 24 October
1973
VRS Castricum 9 December     
VRS Castricum 9 December
1972
VRS Castricum 24 September     
VRS Castricum 17 November
1971
VRS Castricum 2 October     
VRS Castricum 5 November
1969
VRS Castricum 21 November     
VRS Castricum 21 November
1967
VRS Castricum 12 October     
VRS Castricum 12 October
1965
VRS Castricum 25 March     
VRS Castricum 2 April
1964
VRS Castricum 2 September     
VRS Castricum 2 September
 
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