Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1953 0 51:15
1954 0 64:45
1955 0 81:45
1956 3 80:00
1957 0 99:45
1958 25 84:00
1959 0 77:00
1960 1 68:45
1961 0 84:30
1962 0 69:30
1963 0 53:30
1964 1 53:15
1965 270 68:30
1966 0 48:45
1967 0 31:00
1968 0 33:15
1969 44 36:15
1970 0 50:30
1971 0 38:15
1972 83 45:45
1973 0 27:15
1974 0 0:00
1975 0 55:15
1976 0 48:00
1977 0 43:15
1978 0 45:00
1979 0 52:00
1980 20 51:45
1981 585 62:00
1982 579 177:30
1983 36 4:15
1984 1739 194:00
1985 8507 253:45
1986 2096 292:00
1987 2862 282:15
1988 726 226:15
1989 422 165:45
1990 610 134:45
1991 240 127:30
1992 1505 114:30
1993 288 117:45
1994 337 64:30
1995 16 90:30
1996 87 102:10
1997 117 89:00
1998 2 49:45
1999 149 162:00
2000 1008 123:30
2001 1120 159:00
2002 584 103:15
2003 67 68:30
2004 139 106:30
2005 47 112:30
2006 36 60:00
2007 125 70:30
2008 499 103:51
2009 114 78:30
2010 216 76:30
2011 1582 214:15
2012 505 225:50
2013 6186 180:30
2014 3726 206:35
2015 579 77:15
2016 24 101:05
2017 24 55:40
2018 361 66:31
2019 658 90:45
 
Partners