Phenology

Country
Migration site
Species
Period
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Year Migration site First Migration site Last
2021
VRS Castricum 5 January     
VRS Castricum 2 March
2020
VRS Castricum 31 January     
VRS Castricum 29 December
2019
VRS Castricum 3 January     
VRS Castricum 30 December
2018
VRS Castricum 9 January     
VRS Castricum 24 December
2017
VRS Castricum 2 January     
VRS Castricum 29 December
2016
VRS Castricum 6 January     
VRS Castricum 23 December
2015
VRS Castricum 5 January     
VRS Castricum 15 December
2014
VRS Castricum 20 January     
VRS Castricum 31 December
2013
VRS Castricum 2 January     
VRS Castricum 11 December
2012
VRS Castricum 14 January     
VRS Castricum 24 December
2011
VRS Castricum 7 January     
VRS Castricum 28 November
2010
VRS Castricum 1 January     
VRS Castricum 30 December
2009
VRS Castricum 3 January     
VRS Castricum 19 December
2008
VRS Castricum 28 March     
VRS Castricum 29 December
2007
VRS Castricum 4 February     
VRS Castricum 31 December
2006
VRS Castricum 2 January     
VRS Castricum 24 December
2005
VRS Castricum 4 March     
VRS Castricum 29 December
2004
VRS Castricum 1 January     
VRS Castricum 21 December
2003
VRS Castricum 4 January     
VRS Castricum 10 December
2002
VRS Castricum 4 January     
VRS Castricum 21 December
2001
VRS Castricum 14 January     
VRS Castricum 23 December
2000
VRS Castricum 5 January     
VRS Castricum 31 December
1999
VRS Castricum 10 January     
VRS Castricum 28 December
1998
VRS Castricum 26 January     
VRS Castricum 23 December
1997
VRS Castricum 2 January     
VRS Castricum 21 December
1996
VRS Castricum 2 January     
VRS Castricum 30 December
1995
VRS Castricum 5 February     
VRS Castricum 30 December
1994
VRS Castricum 6 February     
VRS Castricum 15 December
1993
VRS Castricum 1 January     
VRS Castricum 24 November
1992
VRS Castricum 1 March     
VRS Castricum 31 December
1991
VRS Castricum 1 March     
VRS Castricum 15 December
1990
VRS Castricum 1 January     
VRS Castricum 19 December
1989
VRS Castricum 3 January     
VRS Castricum 31 December
1988
VRS Castricum 16 August     
VRS Castricum 8 December
1987
VRS Castricum 2 January     
VRS Castricum 15 December
1986
VRS Castricum 2 January     
VRS Castricum 24 December
1985
VRS Castricum 2 January     
VRS Castricum 30 December
1984
VRS Castricum 3 August     
VRS Castricum 8 December
1983
VRS Castricum 3 August     
VRS Castricum 19 November
1982
VRS Castricum 5 April     
VRS Castricum 23 December
1981
VRS Castricum 5 April     
VRS Castricum 17 December
1980
VRS Castricum 1 August     
VRS Castricum 7 December
1979
VRS Castricum 1 January     
VRS Castricum 25 December
1978
VRS Castricum 7 September     
VRS Castricum 23 December
1977
VRS Castricum 15 August     
VRS Castricum 17 December
1976
VRS Castricum 3 February     
VRS Castricum 20 November
1975
VRS Castricum 8 August     
VRS Castricum 30 November
1974
VRS Castricum 27 September     
VRS Castricum 5 November
1973
VRS Castricum 28 July     
VRS Castricum 17 November
1972
VRS Castricum 23 September     
VRS Castricum 15 December
1971
VRS Castricum 2 October     
VRS Castricum 10 November
1970
VRS Castricum 26 September     
VRS Castricum 28 November
1969
VRS Castricum 25 September     
VRS Castricum 22 November
1968
VRS Castricum 28 September     
VRS Castricum 20 November
1967
VRS Castricum 23 September     
VRS Castricum 25 November
1966
VRS Castricum 9 October     
VRS Castricum 19 November
1965
VRS Castricum 29 September     
VRS Castricum 20 October
1964
VRS Castricum 23 October     
VRS Castricum 29 October
1963
VRS Castricum 8 October     
VRS Castricum 21 November
1962
VRS Castricum 19 October     
VRS Castricum 22 November
1961
VRS Castricum 6 October     
VRS Castricum 6 October
 
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