Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1971 0 1:15
1972 0 0:30
1974 8 6:30
1977 0 2:30
1982 0 1:50
1983 3 13:30
1984 18 12:30
1985 20 20:15
1986 0 2:00
1987 0 3:30
1988 5 3:15
1989 146 9:30
1990 0 0:00
1991 200 4:30
1992 0 3:00
1993 0 6:46
1994 0 1:00
1995 26 9:45
1996 50 5:15
1997 0 6:15
1998 6 6:30
1999 4 4:15
2000 45 8:45
2001 123 24:00
2002 66 11:30
2003 2 6:14
2004 147 52:15
2005 1801 370:45
2006 3088 560:00
2007 3935 568:00
2008 3799 623:30
2009 2338 346:10
2010 1649 257:51
2011 1742 379:30
2012 4211 474:30
2013 2193 449:30
2014 6518 366:57
2015 1410 241:57
2016 3690 386:02
2017 1484 309:56
2018 4686 319:16
2019 1965 243:15
2020 0 9:00
 
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