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 0 80:00
1957 0 99:45
1958 3 84:00
1959 2 77:00
1960 0 68:45
1961 6 84:30
1962 0 69:30
1963 0 53:30
1964 12 53:15
1965 12 68:30
1966 27 48:45
1967 9 31:00
1968 17 33:15
1969 5 36:15
1970 0 50:30
1971 9 38:15
1972 10 45:45
1973 6 27:15
1974 0 0:00
1975 3 55:15
1976 4 48:00
1977 19 43:15
1978 16 45:00
1979 3 52:00
1980 1 51:45
1981 2 62:00
1982 0 177:30
1983 0 4:15
1984 94 194:00
1985 74 253:45
1986 51 292:00
1987 45 282:15
1988 8 176:15
1989 20 133:30
1990 0 116:15
1991 0 105:30
1992 1 104:15
1993 4 117:45
1994 13 64:30
1995 3 90:30
1996 26 102:10
1997 9 89:00
1998 12 49:45
1999 3 162:00
2000 10 123:30
2001 28 144:15
2002 0 71:30
2003 16 54:15
2004 28 101:45
2005 13 112:30
2006 0 60:00
2007 6 70:30
2008 9 103:51
2009 12 78:30
2010 15 76:30
2011 119 214:15
2012 42 225:50
2013 97 180:30
2014 21 206:35
2015 10 77:15
2016 28 101:05
2017 5 55:40
2018 0 66:31
2019 41 90:45
 
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