Graph

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

Year Totals Observation hours
1997 189 63:45
1998 37 48:00
1999 38 79:45
2000 64 114:15
2001 70 130:55
2002 193 311:10
2003 302 434:00
2004 804 539:15
2005 676 741:30
2006 540 671:30
2007 391 742:30
2008 961 700:00
2009 444 629:45
2010 515 570:15
2011 487 520:15
2012 505 543:15
2013 317 410:30
2014 939 500:15
2015 1062 683:45
2016 431 688:45
2017 979 671:00
2018 1333 739:00
2019 841 737:00
2020 560 795:00
2021 748 787:15
2022 779 648:40
2023 248 527:00
 
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