Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1983 0 9:15
1984 0 27:20
1985 0 29:00
1986 63 69:40
1987 19 47:00
1988 0 17:30
1989 10 45:00
1990 0 35:00
1991 0 48:28
1992 34 45:00
1993 11 51:30
1994 13 27:30
1995 15 50:00
1996 18 49:15
1997 0 34:50
1998 20 50:00
1999 0 57:20
2000 10 42:30
2001 25 69:35
2002 2 76:40
2003 9 108:30
2004 9 111:45
2005 29 145:21
2006 27 152:17
2007 35 187:59
2008 135 132:42
2009 50 75:32
2010 177 236:16
2011 125 281:19
2012 157 394:00
2013 49 408:08
2014 121 481:30
2015 147 400:00
2016 198 467:00
2017 66 490:30
2018 65 442:30
2019 60 431:54
2020 0 66:00
 
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