Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1983 2605 9:15
1984 2833 27:20
1985 6132 29:00
1986 3163 69:40
1987 5358 47:00
1988 599 17:30
1989 3113 45:00
1990 1556 35:00
1991 2814 48:28
1992 2548 45:00
1993 2492 51:30
1994 3918 27:30
1995 2746 50:00
1996 2351 49:15
1997 2562 34:50
1998 2121 50:00
1999 1759 57:20
2000 1999 42:30
2001 9525 69:35
2002 4583 76:40
2003 8016 108:30
2004 3916 111:45
2005 7714 145:21
2006 18543 152:17
2007 17579 187:59
2008 17179 132:42
2009 4644 75:32
2010 23399 236:16
2011 34533 281:19
2012 52049 394:00
2013 27181 408:08
2014 46259 481:30
2015 17784 400:00
2016 22139 467:00
2017 88017 490:30
2018 88281 442:30
2019 68606 431:54
2020 75546 451:00
 
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