Graph

Country
Migration site
Species
Period    
Sex
 Age
 Plumage
Present
Favourites
Don't use roostmigration

Year Totals Observation hours
1983 8 9:15
1984 17 27:20
1985 10 29:00
1986 24 69:40
1987 33 47:00
1988 2 17:30
1989 19 45:00
1990 12 35:30
1991 37 48:28
1992 6 45:00
1993 19 51:30
1994 2 27:30
1995 21 50:00
1996 13 49:15
1997 15 34:50
1998 17 50:00
1999 43 57:20
2000 47 42:30
2001 63 69:35
2002 60 76:40
2003 74 108:30
2004 72 111:45
2005 192 145:21
2006 163 152:17
2007 206 187:59
2008 236 132:42
2009 46 75:32
2010 256 236:16
2011 503 281:19
2012 614 394:00
2013 458 408:08
2014 889 481:30
2015 368 400:00
2016 324 467:00
2017 473 490:30
2018 461 442:30
2019 463 431:54
2020 451 451:00
2021 616 382:00
2022 436 317:58
2023 45 184:30
 
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