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 18 791:25
1978 15 820:52
1979 17 934:10
1980 1 731:36
1981 18 944:01
1982 9 768:05
1983 11 673:25
1984 9 682:07
1985 11 775:03
1986 9 933:53
1987 11 1120:12
1988 13 1184:32
1989 10 1293:12
1990 9 944:40
1991 5 858:50
1992 5 759:26
1993 5 827:13
1994 4 1135:36
1995 3 1315:15
1996 3 1503:39
1997 5 1460:20
1998 13 1162:42
1999 10 1225:50
2000 5 1031:40
2001 2 1273:17
2002 5 1125:31
2003 5 1253:15
2004 2 1065:05
2005 4 1106:54
2006 3 964:46
2007 7 1081:59
2008 2 1099:59
2009 4 1282:49
2010 2 1288:05
2011 9 1234:15
2012 2 1364:55
2013 0 1352:29
2014 0 1299:50
2015 4 1223:30
2016 3 1409:54
2017 4 524:40
2018 4 1539:51
2019 2 1131:19
2020 4 1214:00
2021 4 1171:30
 
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