Graph

Country
Migration site
Species
Period    
Sex
 Age
 Plumage
Present
Favourites
Don't use roostmigration

Year Totals Observation hours
1953 579 51:15
1954 376 64:45
1955 12963 81:45
1956 1 80:00
1957 107 99:45
1958 190 84:00
1959 2280 77:00
1960 1248 68:45
1961 2809 84:30
1962 323 69:30
1963 993 57:55
1964 199 53:15
1965 348 68:30
1966 43 48:45
1967 133 31:00
1968 529 33:15
1969 1307 36:15
1970 387 50:30
1971 724 38:15
1972 206 47:45
1973 337 27:15
1974 0 0:00
1975 309 55:15
1976 15 51:40
1977 77 43:15
1978 527 45:00
1979 718 59:30
1980 3198 54:45
1981 2965 63:30
1982 873 177:30
1983 0 4:15
1984 7447 194:00
1985 581 253:45
1986 11006 292:00
1987 8671 319:40
1988 3615 410:25
1989 830 239:42
1990 835 134:45
1991 1257 128:00
1992 220 116:30
1993 942 117:45
1994 994 67:00
1995 279 90:30
1996 78877 102:10
1997 7437 89:00
1998 22198 49:45
1999 11762 162:00
2000 1452 123:30
2001 3582 185:15
2002 151 143:15
2003 1085 85:30
2004 7419 106:30
2005 5009 112:30
2006 36 60:00
2007 7240 70:30
2008 1692 103:51
2009 1074 78:30
2010 569 76:30
2011 5608 214:15
2012 452 225:50
2013 21675 180:30
2014 1598 206:35
2015 2449 77:15
2016 4162 101:05
2017 35 55:40
2018 414 66:31
2019 6014 90:45
2020 1894 172:21
2021 4695 142:00
2022 3216 163:17
2023 1 78:20
 
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