Graph

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

Year Totals Observation hours
1971 0 1:15
1972 0 0:30
1974 0 6:30
1977 0 2:30
1982 0 1:50
1983 0 13:30
1984 0 12:30
1985 6 20:15
1986 0 2:00
1987 0 3:30
1988 0 3:15
1989 0 9:30
1990 0 0:00
1991 0 4:30
1992 0 3:00
1993 0 6:46
1994 0 1:00
1995 0 9:45
1996 0 5:15
1997 0 6:15
1998 0 6:30
1999 0 4:15
2000 0 8:45
2001 0 24:00
2002 0 11:30
2003 0 6:14
2004 0 52:15
2005 36 370:45
2006 112 560:00
2007 34 568:00
2008 6 623:30
2009 145 346:10
2010 22 257:51
2011 12 379:30
2012 90 474:30
2013 623 449:30
2014 35 366:57
2015 11 241:57
2016 0 386:02
2017 8 309:56
2018 15 319:16
2019 0 243:15
2020 14 304:06
2021 0 186:53
2022 3 219:44
 
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