Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1960 0 0:00
1961 0 0:00
1962 0 0:00
1963 0 0:00
1964 0 0:00
1965 0 0:00
1966 0 0:00
1967 0 0:00
1968 0 0:00
1969 0 0:00
1970 0 0:00
1971 0 0:00
1972 0 0:00
1973 0 0:00
1974 0 0:00
1975 0 0:00
1976 0 0:00
1977 38 791:25
1978 34 820:52
1979 30 934:10
1980 36 731:36
1981 107 944:01
1982 46 768:05
1983 55 673:25
1984 62 682:07
1985 31 775:03
1986 27 933:53
1987 48 1120:12
1988 20 1184:32
1989 27 1293:12
1990 69 944:40
1991 57 858:50
1992 86 759:26
1993 40 827:13
1994 42 1135:36
1995 71 1315:15
1996 18 1503:39
1997 22 1460:20
1998 31 1162:42
1999 12 1225:50
2000 21 1031:40
2001 28 1273:17
2002 39 1125:31
2003 13 1253:15
2004 32 1065:05
2005 42 1106:54
2006 31 964:46
2007 24 1081:59
2008 47 1099:59
2009 20 1282:49
2010 33 1288:05
2011 26 1234:15
2012 24 1364:55
2013 27 1352:29
2014 132 1299:50
2015 118 1223:30
2016 80 1409:54
2017 0 524:40
2018 133 1539:51
2019 116 1131:19
2020 148 1214:00
2021 78 1207:20
 
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