Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1972 0 31:00
1973 0 18:15
1974 0 7:45
1975 0 18:30
1976 9 66:30
1977 0 23:45
1978 2 116:45
1979 29 71:45
1980 6 109:00
1981 6 78:00
1982 9 39:00
1983 0 71:00
1984 0 30:15
1985 5 98:00
1986 7 41:30
1987 0 42:15
1988 12 55:00
1989 3 47:15
1990 0 33:00
1991 0 18:00
1992 20 28:30
1993 39 25:45
1994 2 40:00
1995 1 15:15
1996 0 5:00
1997 1 26:30
1998 0 20:00
1999 20 26:45
2000 0 27:30
2001 0 23:00
2002 14 26:55
2003 0 37:45
2004 1 30:10
2005 0 34:00
2006 12 41:33
2007 1 83:14
2008 4 56:33
2009 10 76:07
2010 5 52:50
2011 2 80:30
2012 4 94:05
2013 3 66:27
2014 0 41:10
2015 2 49:05
2016 4 19:00
2017 6 123:39
2018 2 89:34
2019 1 98:07
2020 9 108:43
2021 0 4:45
 
Partners