Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1983 58 9:15
1984 315 27:20
1985 315 29:00
1986 1601 69:40
1987 401 47:00
1988 167 17:30
1989 403 45:00
1990 571 35:00
1991 952 48:28
1992 1071 45:00
1993 713 51:30
1994 105 27:30
1995 280 50:00
1996 631 49:15
1997 798 34:50
1998 712 50:00
1999 1025 57:20
2000 87 42:30
2001 1926 69:35
2002 1778 76:40
2003 1140 108:30
2004 1356 111:45
2005 2400 145:21
2006 3676 152:17
2007 5122 187:59
2008 7082 132:42
2009 954 75:32
2010 8432 236:16
2011 12056 281:19
2012 7037 394:00
2013 20500 408:08
2014 2368 481:30
2015 18540 400:00
2016 15469 467:00
2017 6341 490:30
2018 25493 442:30
2019 18100 431:54
2020 35821 451:00
 
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