Graph

Country
Migration site
Species
Period    
Sex
 Age
 Plumage
Present
Favourites

Year Totals Observation hours
1983 1082 9:15
1984 961 27:20
1985 309 29:00
1986 1025 69:40
1987 786 47:00
1988 241 17:30
1989 1154 45:00
1990 2316 35:30
1991 4124 48:28
1992 1671 45:00
1993 1855 51:30
1994 642 27:30
1995 2023 50:00
1996 657 49:15
1997 1542 34:50
1998 496 50:00
1999 1373 57:20
2000 1221 42:30
2001 2414 69:35
2002 3663 76:40
2003 4697 108:30
2004 3615 111:45
2005 4987 145:21
2006 7393 152:17
2007 10076 187:59
2008 3106 132:42
2009 3003 75:32
2010 7021 236:16
2011 6465 281:19
2012 13798 394:00
2013 19382 408:08
2014 20910 481:30
2015 8701 400:00
2016 10686 467:00
2017 7291 490:30
2018 19710 442:30
2019 12256 431:54
2020 14324 451:00
2021 90 183:30
 
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