Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1983 294 9:15
1984 0 27:20
1985 0 29:00
1986 313 69:40
1987 182 47:00
1988 0 17:30
1989 0 45:00
1990 0 35:00
1991 0 48:28
1992 0 45:00
1993 0 51:30
1994 0 27:30
1995 11 50:00
1996 374 49:15
1997 691 34:50
1998 1490 50:00
1999 1863 57:20
2000 3483 42:30
2001 1287 69:35
2002 4988 76:40
2003 575 108:30
2004 3675 111:45
2005 4639 145:21
2006 1836 152:17
2007 0 187:59
2008 5452 132:42
2009 168 75:32
2010 3715 236:16
2011 227 281:19
2012 0 394:00
2013 0 408:08
2014 0 481:30
2015 0 400:00
2016 0 467:00
2017 0 490:30
2018 0 442:30
2019 0 431:54
2020 0 451:00
2021 0 32:00
 
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