Graph

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

Year Totals Observation hours
1900 0 5:30
1980 0 2:00
1981 5 143:25
1982 14 100:04
1983 0 76:05
1984 6 157:55
1985 0 193:05
1986 0 180:40
1987 0 99:15
1988 2 216:00
1989 2 269:46
1990 21 262:45
1991 93 405:47
1992 21 645:00
1993 29 397:58
1994 21 286:00
1995 5 224:45
1996 21 328:00
1997 23 356:45
1998 47 339:30
1999 31 267:15
2000 17 261:30
2001 59 525:35
2002 42 526:15
2003 39 567:15
2004 50 455:05
2005 97 601:15
2006 109 389:55
2007 37 432:55
2008 51 525:55
2009 77 399:05
2010 16 249:40
2011 147 319:15
2012 67 231:35
2013 217 270:55
2014 33 291:35
2015 10 177:30
2016 35 230:15
2017 33 250:05
2018 91 318:16
2019 61 584:19
2020 114 587:17
2021 119 646:27
2022 152 525:10
 
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