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 0 791:25
1978 0 820:52
1979 0 934:10
1980 0 731:36
1981 1 944:01
1982 0 768:05
1983 0 673:25
1984 1 682:07
1985 0 775:03
1986 0 933:53
1987 0 1120:12
1988 0 1184:32
1989 0 1293:12
1990 6 944:40
1991 6 858:50
1992 8 759:26
1993 1 827:13
1994 11 1135:36
1995 3 1315:15
1996 1 1503:39
1997 2 1460:20
1998 2 1162:42
1999 5 1225:50
2000 2 1031:40
2001 10 1273:17
2002 0 1125:31
2003 1 1253:15
2004 4 1065:05
2005 0 1106:54
2006 2 964:46
2007 0 1081:59
2008 4 1099:59
2009 12 1282:49
2010 14 1288:05
2011 22 1234:15
2012 15 1364:55
2013 6 1352:29
2014 17 1299:50
2015 12 1223:30
2016 13 1409:54
2017 0 524:40
2018 13 1539:51
2019 8 1131:19
2020 22 1214:00
2021 5 617:15
 
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