Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1971 2 1:15
1972 0 0:30
1974 32 6:30
1977 11 2:30
1982 0 1:50
1983 87 13:30
1984 45 12:30
1985 62 20:15
1986 20 2:00
1987 50 3:30
1988 1 3:15
1989 3 9:30
1990 0 0:00
1991 10 4:30
1992 3 3:00
1993 1 6:46
1994 0 1:00
1995 25 9:45
1996 21 5:15
1997 65 6:15
1998 15 6:30
1999 65 4:15
2000 90 8:45
2001 65 24:00
2002 225 11:30
2003 17 6:14
2004 558 52:15
2005 10783 370:45
2006 14361 560:00
2007 14999 568:00
2008 1320 623:30
2009 1507 346:10
2010 8252 257:51
2011 32078 379:30
2012 5305 474:30
2013 9671 449:30
2014 15021 366:57
2015 2158 241:57
2016 12898 386:02
2017 3801 309:56
2018 141033 319:16
2019 870 243:15
2020 0 14:00
 
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