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 1 791:25
1978 0 820:52
1979 1 934:10
1980 0 731:36
1981 2 944:01
1982 7 768:05
1983 0 673:25
1984 1 682:07
1985 3 775:03
1986 1 933:53
1987 0 1120:12
1988 6 1184:32
1989 2 1293:12
1990 1 944:40
1991 9 858:50
1992 2 759:26
1993 6 827:13
1994 30 1135:36
1995 62 1315:15
1996 38 1503:39
1997 57 1460:20
1998 17 1162:42
1999 22 1225:50
2000 54 1031:40
2001 25 1273:17
2002 15 1125:31
2003 10 1253:15
2004 12 1065:05
2005 5 1106:54
2006 7 964:46
2007 3 1081:59
2008 13 1099:59
2009 12 1282:49
2010 10 1288:05
2011 3 1234:15
2012 5 1364:55
2013 5 1352:29
2014 3 1299:50
2015 2 1223:30
2016 6 1409:54
2017 0 524:40
2018 2 1539:51
2019 1 1131:19
2020 0 1214:00
2021 4 760:20
 
Partners