Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1953 14 51:15
1954 3 64:45
1955 0 81:45
1956 0 80:00
1957 3 99:45
1958 4 84:00
1959 1 77:00
1960 0 68:45
1961 22 84:30
1962 4 69:30
1963 0 53:30
1964 0 53:15
1965 11 68:30
1966 15 48:45
1967 13 31:00
1968 17 33:15
1969 0 36:15
1970 0 50:30
1971 36 38:15
1972 5 45:45
1973 0 27:15
1974 0 0:00
1975 15 55:15
1976 33 48:00
1977 28 43:15
1978 14 45:00
1979 1 52:00
1980 8 51:45
1981 37 62:00
1982 14 177:30
1983 4 4:15
1984 66 194:00
1985 108 253:45
1986 59 292:00
1987 69 282:15
1988 173 226:15
1989 70 165:45
1990 97 134:45
1991 56 127:30
1992 21 116:30
1993 204 117:45
1994 94 64:30
1995 110 90:30
1996 81 102:10
1997 107 89:00
1998 32 49:45
1999 184 162:00
2000 71 123:30
2001 176 181:15
2002 54 143:15
2003 46 85:30
2004 55 106:30
2005 241 112:30
2006 25 60:00
2007 69 70:30
2008 76 103:51
2009 41 78:30
2010 48 76:30
2011 240 214:15
2012 245 225:50
2013 187 180:30
2014 201 206:35
2015 118 77:15
2016 51 101:05
2017 107 55:40
2018 108 66:31
2019 198 90:45
2020 13 15:44
 
Partners