Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1983 149 9:15
1984 14 27:20
1985 93 29:00
1986 552 69:40
1987 117 47:00
1988 36 17:30
1989 33 45:00
1990 134 35:00
1991 60 48:28
1992 71 45:00
1993 188 51:30
1994 26 27:30
1995 54 50:00
1996 105 49:15
1997 210 34:50
1998 270 50:00
1999 455 57:20
2000 67 42:30
2001 98 69:35
2002 201 76:40
2003 218 108:30
2004 184 111:45
2005 768 145:21
2006 328 152:17
2007 1458 187:59
2008 212 132:42
2009 173 75:32
2010 2057 236:16
2011 869 281:19
2012 2098 394:00
2013 1074 408:08
2014 1482 481:30
2015 1391 400:00
2016 943 467:00
2017 1437 490:30
2018 1659 442:30
2019 2549 431:54
2020 0 102:00
 
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