Graph

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

Year Totals Observation hours
1997 2 63:45
1998 0 48:00
1999 0 79:45
2000 0 114:15
2001 0 130:55
2002 0 311:10
2003 1 434:00
2004 2 539:15
2005 7 741:30
2006 5 671:30
2007 1 742:30
2008 2 700:00
2009 6 629:45
2010 2 570:15
2011 0 520:15
2012 0 543:15
2013 0 410:30
2014 1 500:15
2015 0 683:45
2016 0 688:45
2017 0 671:00
2018 0 739:00
2019 0 737:00
2020 0 795:00
2021 0 787:15
2022 1 648:40
2023 0 81:03
 
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