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 21 820:52
1979 30 934:10
1980 29 731:36
1981 47 944:01
1982 33 768:05
1983 11 673:25
1984 2 682:07
1985 2 775:03
1986 4 933:53
1987 24 1120:12
1988 28 1184:32
1989 21 1293:12
1990 14 944:40
1991 35 858:50
1992 38 759:26
1993 30 827:13
1994 61 1135:36
1995 48 1315:15
1996 44 1503:39
1997 58 1460:20
1998 66 1162:42
1999 42 1225:50
2000 39 1031:40
2001 41 1273:17
2002 21 1125:31
2003 35 1253:15
2004 17 1065:05
2005 18 1106:54
2006 11 964:46
2007 17 1081:59
2008 13 1099:59
2009 14 1282:49
2010 16 1288:05
2011 10 1234:15
2012 11 1364:55
2013 9 1352:29
2014 19 1299:50
2015 8 1223:30
2016 3 1409:54
2017 2 524:40
2018 13 1539:51
2019 7 1131:19
2020 3 1214:00
2021 2 1004:05
 
Partners