Phenology

Country
Migration site
Species
Period
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Year Migration site First Migration site Last
2021
VRS Castricum 8 January     
VRS Castricum 18 April
2020
VRS Castricum 7 April     
VRS Castricum 31 December
2019
VRS Castricum 20 September     
VRS Castricum 14 November
2018
VRS Castricum 28 February     
VRS Castricum 6 November
2017
VRS Castricum 6 July     
VRS Castricum 11 December
2016
VRS Castricum 17 April     
VRS Castricum 29 November
2015
VRS Castricum 6 August     
VRS Castricum 4 November
2014
VRS Castricum 19 July     
VRS Castricum 19 July
2013
VRS Castricum 22 January     
VRS Castricum 11 November
2012
VRS Castricum 3 February     
VRS Castricum 8 December
2011
VRS Castricum 1 August     
VRS Castricum 13 November
2010
VRS Castricum 2 January     
VRS Castricum 3 December
2009
VRS Castricum 9 January     
VRS Castricum 22 December
2008
VRS Castricum 24 July     
VRS Castricum 31 December
2007
VRS Castricum 2 August     
VRS Castricum 21 December
2006
VRS Castricum 16 July     
VRS Castricum 6 August
2005
VRS Castricum 2 March     
VRS Castricum 31 December
2004
VRS Castricum 1 January     
VRS Castricum 21 November
2003
VRS Castricum 1 February     
VRS Castricum 10 December
2002
VRS Castricum 24 March     
VRS Castricum 11 December
2001
VRS Castricum 16 January     
VRS Castricum 30 December
2000
VRS Castricum 12 August     
VRS Castricum 23 December
1999
VRS Castricum 9 February     
VRS Castricum 9 September
1998
VRS Castricum 23 April     
VRS Castricum 3 December
1997
VRS Castricum 7 August     
VRS Castricum 14 December
1996
VRS Castricum 4 August     
VRS Castricum 24 October
1995
VRS Castricum 6 January     
VRS Castricum 11 November
1994
VRS Castricum 10 July     
VRS Castricum 29 November
1993
VRS Castricum 1 January     
VRS Castricum 21 November
1992
VRS Castricum 23 October     
VRS Castricum 23 October
1991
VRS Castricum 3 February     
VRS Castricum 29 September
1990
VRS Castricum 29 July     
VRS Castricum 17 November
1989
VRS Castricum 27 July     
VRS Castricum 12 November
1988
VRS Castricum 31 August     
VRS Castricum 26 October
1987
VRS Castricum 8 January     
VRS Castricum 9 December
1986
VRS Castricum 2 January     
VRS Castricum 15 October
1985
VRS Castricum 4 January     
VRS Castricum 30 December
1984
VRS Castricum 10 October     
VRS Castricum 5 November
1983
VRS Castricum 21 September     
VRS Castricum 23 October
1982
VRS Castricum 9 August     
VRS Castricum 10 November
1981
VRS Castricum 5 August     
VRS Castricum 17 December
1980
VRS Castricum 17 August     
VRS Castricum 4 October
1979
VRS Castricum 8 September     
VRS Castricum 8 September
1976
VRS Castricum 29 January     
VRS Castricum 20 October
1973
VRS Castricum 2 December     
VRS Castricum 2 December
1971
VRS Castricum 27 October     
VRS Castricum 27 October
 
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