Graph

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

Year Totals Observation hours
1953 3 51:15
1954 371 64:45
1955 52 81:45
1956 6 80:00
1957 299 99:45
1958 846 84:00
1959 410 77:00
1960 68 68:45
1961 2461 84:30
1962 20 69:30
1963 80 57:55
1964 1 53:15
1965 34 68:30
1966 160 48:45
1967 18 31:00
1968 1 33:15
1969 0 36:15
1970 14 50:30
1971 175 38:15
1972 6 47:45
1973 0 27:15
1974 0 0:00
1975 132 55:15
1976 0 51:40
1977 45 43:15
1978 9 45:00
1979 0 59:30
1980 5 54:45
1981 136 63:30
1982 163 177:30
1983 13 4:15
1984 1817 194:00
1985 603 253:45
1986 454 292:00
1987 247 319:40
1988 347 410:25
1989 557 239:42
1990 691 134:45
1991 95 128:00
1992 162 116:30
1993 7339 117:45
1994 251 67:00
1995 1141 90:30
1996 1807 102:10
1997 665 89:00
1998 120 49:45
1999 1438 162:00
2000 801 123:30
2001 2739 185:15
2002 607 143:15
2003 84 85:30
2004 390 106:30
2005 1450 112:30
2006 67 60:00
2007 751 70:30
2008 581 103:51
2009 336 78:30
2010 523 76:30
2011 1014 214:15
2012 923 225:50
2013 575 180:30
2014 1181 206:35
2015 735 77:15
2016 181 101:05
2017 127 55:40
2018 1203 66:31
2019 13681 90:45
2020 1338 172:21
2021 5175 142:00
2022 4384 163:17
2023 8 78:20
 
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