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 2 791:25
1978 19 820:52
1979 11 934:10
1980 18 731:36
1981 26 944:01
1982 14 768:05
1983 33 673:25
1984 4 682:07
1985 7 775:03
1986 22 933:53
1987 12 1120:12
1988 34 1184:32
1989 31 1293:12
1990 11 944:40
1991 6 858:50
1992 6 759:26
1993 10 827:13
1994 10 1135:36
1995 8 1315:15
1996 11 1503:39
1997 7 1460:20
1998 9 1162:42
1999 12 1225:50
2000 8 1031:40
2001 3 1273:17
2002 4 1125:31
2003 1 1253:15
2004 4 1065:05
2005 7 1106:54
2006 5 964:46
2007 6 1081:59
2008 8 1099:59
2009 8 1282:49
2010 7 1288:05
2011 9 1234:15
2012 6 1364:55
2013 5 1352:29
2014 0 1299:50
2015 2 1223:30
2016 2 1409:54
2017 2 524:40
2018 3 1539:51
2019 2 1131:19
2020 2 1214:00
2021 3 1402:20
 
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