Graph

Country
Migration site
Species
Period    
Sex
 Age
 Plumage
Present
Favourites

Year Totals Observation hours
1983 12 9:15
1984 4 27:20
1985 17 29:00
1986 51 69:40
1987 21 47:00
1988 20 17:30
1989 40 45:00
1990 23 35:00
1991 32 48:28
1992 87 45:00
1993 88 51:30
1994 61 27:30
1995 60 50:00
1996 32 49:15
1997 27 34:50
1998 16 50:00
1999 36 57:20
2000 43 42:30
2001 64 69:35
2002 62 76:40
2003 101 108:30
2004 103 111:45
2005 85 145:21
2006 117 152:17
2007 98 187:59
2008 83 132:42
2009 57 75:32
2010 183 236:16
2011 146 281:19
2012 293 394:00
2013 100 408:08
2014 135 481:30
2015 145 400:00
2016 94 467:00
2017 96 490:30
2018 111 442:30
2019 101 431:54
2020 52 451:00
 
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