Graph

Country
Migration site
Species
Period    
Sex
 Age
 Plumage
Present
Favourites

Year Totals Observation hours
1983 0 9:15
1984 1 27:20
1985 13 29:00
1986 21 69:40
1987 44 47:00
1988 0 17:30
1989 16 45:00
1990 0 35:00
1991 346 48:28
1992 206 45:00
1993 287 51:30
1994 3 27:30
1995 186 50:00
1996 22 49:15
1997 407 34:50
1998 208 50:00
1999 182 57:20
2000 78 42:30
2001 201 69:35
2002 525 76:40
2003 256 108:30
2004 522 111:45
2005 194 145:21
2006 938 152:17
2007 2971 187:59
2008 1948 132:42
2009 587 75:32
2010 856 236:16
2011 2792 281:19
2012 3138 394:00
2013 3049 408:08
2014 2692 481:30
2015 2407 400:00
2016 2969 467:00
2017 4889 490:30
2018 3903 442:30
2019 2277 431:54
2020 3094 451:00
 
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