Graph

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

Year Totals Observation hours
1900 21 5:30
1980 2 2:00
1981 4949 143:25
1982 459 100:04
1983 465 76:05
1984 2349 157:55
1985 1162 193:05
1986 2410 180:40
1987 909 99:15
1988 9769 216:00
1989 8931 269:46
1990 15417 262:45
1991 2805 405:47
1992 17246 645:00
1993 9888 397:58
1994 3920 286:00
1995 1921 224:45
1996 1344 328:00
1997 7080 356:45
1998 4180 339:30
1999 3546 267:15
2000 2923 261:30
2001 5339 525:35
2002 3595 526:15
2003 3065 567:15
2004 3436 455:05
2005 6789 601:15
2006 2699 389:55
2007 3724 432:55
2008 18679 525:55
2009 5157 399:05
2010 1163 249:40
2011 3601 319:15
2012 13018 231:35
2013 1700 270:55
2014 1884 291:35
2015 884 177:30
2016 5765 230:15
2017 12035 250:05
2018 5717 318:16
2019 8512 584:19
2020 4988 587:17
2021 4952 646:27
2022 4357 525:10
 
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