Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1972 0 31:00
1973 0 18:15
1974 5 7:45
1975 0 18:30
1976 16 66:30
1977 0 23:45
1978 12 116:45
1979 0 71:45
1980 8 109:00
1981 0 78:00
1982 1 39:00
1983 21 71:00
1984 0 30:15
1985 1 98:00
1986 0 41:30
1987 7 42:15
1988 13 55:00
1989 3 47:15
1990 0 33:00
1991 0 18:00
1992 13 28:30
1993 1 25:45
1994 2 40:00
1995 0 15:15
1996 0 5:00
1997 0 26:30
1998 2 20:00
1999 10 26:45
2000 0 27:30
2001 0 23:00
2002 0 26:55
2003 13 37:45
2004 8 30:10
2005 3 34:00
2006 6 41:33
2007 19 83:14
2008 11 56:33
2009 8 76:07
2010 4 52:50
2011 15 80:30
2012 9 94:05
2013 1 66:27
2014 12 41:10
2015 4 49:05
2016 1 19:00
2017 4 123:39
2018 7 89:34
2019 2 98:07
2020 15 108:43
 
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