Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1971 0 1:15
1972 0 0:30
1974 0 6:30
1977 1 2:30
1982 0 1:50
1983 6 13:30
1984 0 12:30
1985 2 20:15
1986 0 2:00
1987 1 3:30
1988 0 3:15
1989 0 9:30
1990 0 0:00
1991 0 4:30
1992 0 3:00
1993 1 6:46
1994 0 1:00
1995 1 9:45
1996 0 5:15
1997 0 6:15
1998 3 6:30
1999 3 4:15
2000 3 8:45
2001 3 24:00
2002 3 11:30
2003 0 6:14
2004 11 52:15
2005 39 370:45
2006 229 560:00
2007 165 568:00
2008 52 623:30
2009 36 346:10
2010 12 257:51
2011 32 379:30
2012 26 474:30
2013 7 449:30
2014 6 366:57
2015 3 241:57
2016 8 386:02
2017 10 309:56
2018 10 319:16
2019 2 243:15
2020 0 129:30
 
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