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 6 791:25
1978 3 820:52
1979 15 934:10
1980 9 731:36
1981 10 944:01
1982 12 768:05
1983 26 673:25
1984 8 682:07
1985 7 775:03
1986 11 933:53
1987 5 1120:12
1988 7 1184:32
1989 9 1293:12
1990 7 944:40
1991 6 858:50
1992 4 759:26
1993 5 827:13
1994 6 1135:36
1995 10 1315:15
1996 13 1503:39
1997 11 1460:20
1998 3 1162:42
1999 12 1225:50
2000 1 1031:40
2001 9 1273:17
2002 8 1125:31
2003 20 1253:15
2004 8 1065:05
2005 10 1106:54
2006 3 964:46
2007 5 1081:59
2008 5 1099:59
2009 6 1282:49
2010 14 1288:05
2011 5 1234:15
2012 13 1364:55
2013 7 1352:29
2014 4 1299:50
2015 8 1223:30
2016 7 1409:54
2017 2 524:40
2018 4 1539:51
2019 4 1131:19
2020 2 1214:00
2021 0 617:15
 
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