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 4 80:00
1957 0 99:45
1958 0 84:00
1959 3 77:00
1960 0 68:45
1961 2 84:30
1962 3 69:30
1963 0 53:30
1964 0 53:15
1965 1 68:30
1966 1 48:45
1967 99 31:00
1968 0 33:15
1969 0 36:15
1970 0 50:30
1971 18 38:15
1972 169 45:45
1973 2 27:15
1974 0 0:00
1975 6 55:15
1976 0 48:00
1977 2 43:15
1978 3 45:00
1979 0 52:00
1980 0 51:45
1981 1 62:00
1982 4 177:30
1983 0 4:15
1984 7 194:00
1985 23 253:45
1986 18 292:00
1987 0 282:15
1988 42 226:15
1989 1505 165:45
1990 0 134:45
1991 0 127:30
1992 0 114:30
1993 191 117:45
1994 115 64:30
1995 0 90:30
1996 3336 102:10
1997 160 89:00
1998 0 49:45
1999 61 162:00
2000 0 123:30
2001 183 159:00
2002 0 103:15
2003 13 68:30
2004 1 106:30
2005 927 112:30
2006 0 60:00
2007 148 70:30
2008 669 103:51
2009 0 78:30
2010 19 76:30
2011 1 214:15
2012 638 225:50
2013 4 180:30
2014 39 206:35
2015 83 77:15
2016 2 101:05
2017 28 55:40
2018 3 66:31
2019 27 90:45
 
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