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 1 934:10
1980 15 731:36
1981 15 944:01
1982 42 768:05
1983 2 673:25
1984 5 682:07
1985 19 775:03
1986 29 933:53
1987 8 1120:12
1988 22 1184:32
1989 45 1293:12
1990 9 944:40
1991 10 858:50
1992 3 759:26
1993 11 827:13
1994 46 1135:36
1995 33 1315:15
1996 44 1503:39
1997 10 1460:20
1998 54 1162:42
1999 15 1225:50
2000 23 1031:40
2001 81 1273:17
2002 27 1125:31
2003 31 1253:15
2004 44 1065:05
2005 100 1106:54
2006 4 964:46
2007 9 1081:59
2008 29 1099:59
2009 66 1282:49
2010 24 1288:05
2011 3 1234:15
2012 25 1364:55
2013 16 1352:29
2014 1 1299:50
2015 13 1223:30
2016 24 1409:54
2017 6 524:40
2018 22 1539:51
2019 5 1131:19
2020 7 1214:00
2021 15 1182:00
 
Partners