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 0 143:25
1982 0 100:04
1983 0 76:05
1984 0 157:55
1985 0 193:05
1986 0 180:40
1987 0 99:15
1988 0 216:00
1989 0 269:46
1990 1 262:45
1991 0 405:47
1992 1 645:00
1993 3 397:58
1994 0 286:00
1995 0 224:45
1996 5 328:00
1997 15 356:45
1998 2 339:30
1999 8 267:15
2000 0 261:30
2001 10 525:35
2002 0 526:15
2003 1 567:15
2004 1 455:05
2005 1 601:15
2006 2 389:55
2007 8 432:55
2008 10 525:55
2009 3 399:05
2010 2 249:40
2011 15 319:15
2012 6 231:35
2013 19 270:55
2014 8 291:35
2015 3 177:30
2016 4 230:15
2017 7 250:05
2018 2 318:16
2019 23 584:19
2020 0 587:17
2021 1 646:27
2022 6 525:10
 
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