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 4 791:25
1978 9 820:52
1979 6 934:10
1980 12 731:36
1981 10 944:01
1982 8 768:05
1983 9 673:25
1984 5 682:07
1985 4 775:03
1986 16 933:53
1987 8 1120:12
1988 22 1184:32
1989 15 1293:12
1990 15 944:40
1991 17 858:50
1992 2 759:26
1993 8 827:13
1994 4 1135:36
1995 2 1315:15
1996 3 1503:39
1997 2 1460:20
1998 1 1162:42
1999 2 1225:50
2000 0 1031:40
2001 1 1273:17
2002 0 1125:31
2003 0 1253:15
2004 2 1065:05
2005 0 1106:54
2006 0 964:46
2007 0 1081:59
2008 0 1099:59
2009 0 1282:49
2010 1 1288:05
2011 0 1234:15
2012 1 1364:55
2013 0 1352:29
2014 1 1299:50
2015 0 1223:30
2016 0 1409:54
2017 0 524:40
2018 0 1539:51
2019 1 1131:19
2020 0 1214:00
2021 0 1018:00
 
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