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 1 13:30
1984 0 12:30
1985 6 20:15
1986 0 2:00
1987 9 3:30
1988 6 3:15
1989 0 9:30
1990 0 0:00
1991 0 4:30
1992 1 3:00
1993 3 6:46
1994 0 1:00
1995 3 9:45
1996 0 5:15
1997 0 6:15
1998 0 6:30
1999 3 4:15
2000 5 8:45
2001 18 24:00
2002 1 11:30
2003 1 6:14
2004 62 52:15
2005 266 370:45
2006 650 560:00
2007 223 568:00
2008 273 623:30
2009 240 346:10
2010 65 257:51
2011 573 379:30
2012 166 474:30
2013 85 449:30
2014 391 366:57
2015 70 241:57
2016 171 386:02
2017 150 309:56
2018 103 319:16
2019 52 243:15
2020 205 304:06
2021 170 186:53
2022 146 219:44
2023 0 0:30
 
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