Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1972 6 31:00
1973 5 18:15
1974 0 7:45
1975 5 18:30
1976 0 66:30
1977 6 23:45
1978 71 116:45
1979 86 71:45
1980 154 109:00
1981 4 78:00
1982 10 39:00
1983 174 71:00
1984 17 30:15
1985 183 98:00
1986 41 41:30
1987 0 42:15
1988 15 55:00
1989 3 47:15
1990 8 33:00
1991 25 18:00
1992 5 28:30
1993 21 25:45
1994 34 40:00
1995 0 15:15
1996 0 5:00
1997 2 26:30
1998 0 20:00
1999 1 26:45
2000 20 27:30
2001 11 23:00
2002 4 26:55
2003 0 37:45
2004 18 30:10
2005 1 34:00
2006 0 41:33
2007 32 83:14
2008 0 56:33
2009 674 76:07
2010 2655 52:50
2011 79 80:30
2012 7 94:05
2013 10 66:27
2014 1 41:10
2015 1 49:05
2016 3 19:00
2017 24 123:39
2018 17 89:34
2019 94 98:07
2020 334 108:43
2021 0 3:00
 
Partners