Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1972 1 31:00
1973 0 18:15
1974 0 7:45
1975 0 18:30
1976 6 66:30
1977 6 23:45
1978 8 116:45
1979 14 71:45
1980 8 109:00
1981 5 78:00
1982 4 39:00
1983 25 71:00
1984 0 30:15
1985 38 98:00
1986 147 41:30
1987 14 42:15
1988 256 55:00
1989 44 47:15
1990 1 33:00
1991 1 18:00
1992 2 28:30
1993 9 25:45
1994 250 40:00
1995 16 15:15
1996 0 5:00
1997 44 26:30
1998 0 20:00
1999 78 26:45
2000 48 27:30
2001 258 23:00
2002 203 26:55
2003 118 37:45
2004 264 30:10
2005 112 34:00
2006 3129 41:33
2007 1039 83:14
2008 743 56:33
2009 739 76:07
2010 192 52:50
2011 678 80:30
2012 1407 94:05
2013 1110 66:27
2014 1106 41:10
2015 746 49:05
2016 749 19:00
2017 2060 123:39
2018 3680 89:34
2019 2813 98:07
2020 2479 108:43
2021 736 4:45
 
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