Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1953 0 51:15
1954 28 64:45
1955 253 81:45
1956 8 80:00
1957 193 99:45
1958 112 84:00
1959 40 77:00
1960 12 68:45
1961 5 84:30
1962 0 69:30
1963 42 53:30
1964 65 53:15
1965 47 68:30
1966 149 48:45
1967 46 31:00
1968 151 33:15
1969 400 36:15
1970 15 50:30
1971 36 38:15
1972 170 45:45
1973 15 27:15
1974 0 0:00
1975 46 55:15
1976 0 48:00
1977 0 43:15
1978 0 45:00
1979 0 52:00
1980 0 51:45
1981 0 62:00
1982 9 177:30
1983 0 4:15
1984 3 194:00
1985 16 253:45
1986 15 292:00
1987 19 282:15
1988 3 226:15
1989 9 165:45
1990 3 134:45
1991 0 127:30
1992 0 114:30
1993 0 117:45
1994 4 64:30
1995 0 90:30
1996 0 102:10
1997 0 89:00
1998 0 49:45
1999 0 162:00
2000 0 123:30
2001 12 159:00
2002 2 92:30
2003 0 68:30
2004 0 106:30
2005 0 112:30
2006 0 60:00
2007 0 70:30
2008 9 103:51
2009 56 78:30
2010 14 76:30
2011 41 214:15
2012 114 225:50
2013 128 180:30
2014 123 206:35
2015 2 77:15
2016 23 101:05
2017 3 55:40
2018 14 66:31
2019 48 90:45
 
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