Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1972 74 31:00
1973 9 18:15
1974 0 7:45
1975 6 18:30
1976 9 66:30
1977 68 23:45
1978 98 116:45
1979 57 71:45
1980 51 109:00
1981 54 78:00
1982 14 39:00
1983 72 71:00
1984 11 30:15
1985 141 98:00
1986 5 41:30
1987 0 42:15
1988 3 55:00
1989 17 47:15
1990 10 33:00
1991 23 18:00
1992 21 28:30
1993 13 25:45
1994 3 40:00
1995 1 15:15
1996 0 5:00
1997 0 26:30
1998 0 20:00
1999 0 26:45
2000 0 27:30
2001 0 23:00
2002 11 26:55
2003 7 37:45
2004 1 30:10
2005 0 34:00
2006 9 41:33
2007 14 83:14
2008 2 56:33
2009 2 76:07
2010 1 52:50
2011 4 80:30
2012 24 94:05
2013 28 66:27
2014 2 41:10
2015 26 49:05
2016 67 19:00
2017 73 123:39
2018 6 89:34
2019 38 98:07
2020 122 108:43
2021 0 3:00
 
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