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 6 934:10
1980 11 731:36
1981 3 944:01
1982 6 768:05
1983 3 673:25
1984 7 682:07
1985 6 775:03
1986 3 933:53
1987 0 1120:12
1988 1 1184:32
1989 3 1293:12
1990 12 944:40
1991 8 858:50
1992 5 759:26
1993 2 827:13
1994 13 1135:36
1995 3 1315:15
1996 8 1503:39
1997 7 1460:20
1998 11 1162:42
1999 6 1225:50
2000 6 1031:40
2001 8 1273:17
2002 3 1125:31
2003 14 1253:15
2004 15 1065:05
2005 12 1106:54
2006 10 964:46
2007 9 1081:59
2008 12 1099:59
2009 14 1282:49
2010 4 1288:05
2011 5 1234:15
2012 9 1364:55
2013 2 1352:29
2014 3 1299:50
2015 2 1223:30
2016 0 1409:54
2017 0 524:40
2018 1 1539:51
2019 4 1131:19
2020 2 1214:00
2021 1 1013:15
 
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