Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1953 3 51:15
1954 1115 64:45
1955 56 81:45
1956 56 80:00
1957 20 99:45
1958 97 84:00
1959 47 77:00
1960 46 68:45
1961 33 84:30
1962 12 69:30
1963 2 53:30
1964 4 53:15
1965 39 68:30
1966 12 48:45
1967 3 31:00
1968 10 33:15
1969 23 36:15
1970 9 50:30
1971 16 38:15
1972 20 45:45
1973 3 27:15
1974 0 0:00
1975 12 55:15
1976 21 48:00
1977 34 43:15
1978 32 45:00
1979 60 52:00
1980 79 51:45
1981 183 62:00
1982 206 177:30
1983 3 4:15
1984 280 194:00
1985 459 253:45
1986 226 292:00
1987 315 282:15
1988 813 226:15
1989 664 165:45
1990 315 134:45
1991 800 127:30
1992 322 114:30
1993 401 117:45
1994 322 64:30
1995 50 90:30
1996 110 102:10
1997 81 89:00
1998 53 49:45
1999 1376 162:00
2000 515 123:30
2001 113 159:00
2002 910 111:45
2003 363 68:30
2004 226 106:30
2005 568 112:30
2006 173 60:00
2007 308 70:30
2008 1135 103:51
2009 1129 78:30
2010 272 76:30
2011 2686 214:15
2012 11960 225:50
2013 3452 180:30
2014 3312 206:35
2015 516 77:15
2016 5069 101:05
2017 3993 55:40
2018 265 66:31
2019 1417 90:45
 
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