Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1971 13 1:15
1972 0 0:30
1974 108 6:30
1977 462 2:30
1982 73 1:50
1983 105 13:30
1984 399 12:30
1985 92 20:15
1986 0 2:00
1987 386 3:30
1988 82 3:15
1989 0 9:30
1990 0 0:00
1991 0 4:30
1992 30 3:00
1993 0 6:46
1994 0 1:00
1995 100 9:45
1996 0 5:15
1997 0 6:15
1998 0 6:30
1999 0 4:15
2000 0 8:45
2001 5 24:00
2002 0 11:30
2003 137 6:14
2004 208 52:15
2005 6734 370:45
2006 12530 560:00
2007 9192 568:00
2008 5913 623:30
2009 3813 346:10
2010 3472 257:51
2011 6707 379:30
2012 3604 474:30
2013 6245 449:30
2014 7909 366:57
2015 1168 241:57
2016 1925 386:02
2017 2091 309:56
2018 619 319:16
2019 507 243:15
2020 0 9:00
 
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