Graph

Country
Migration site
Species
Period    
Sex
 Age
 Plumage
Present
Favourites

Year Totals Observation hours
1983 261 9:15
1984 868 27:20
1985 781 29:00
1986 961 69:40
1987 1180 47:00
1988 169 17:30
1989 676 45:00
1990 786 35:00
1991 963 48:28
1992 155 45:00
1993 488 51:30
1994 908 27:30
1995 2327 50:00
1996 424 49:15
1997 1518 34:50
1998 1070 50:00
1999 2550 57:20
2000 1507 42:30
2001 5579 69:35
2002 3323 76:40
2003 1800 108:30
2004 1902 111:45
2005 1005 145:21
2006 5534 152:17
2007 2233 187:59
2008 1510 132:42
2009 498 75:32
2010 2207 236:16
2011 4782 281:19
2012 6033 394:00
2013 3334 408:08
2014 6867 481:30
2015 1933 400:00
2016 4442 467:00
2017 6961 490:30
2018 7328 442:30
2019 8318 431:54
2020 5478 451:00
 
Partners