Graph

Country
Migration site
Species
Period    
Sex
 Age
 Plumage
Present
Favourites
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Year Totals Observation hours
1997 187 63:45
1998 424 48:00
1999 263 79:45
2000 55 114:15
2001 96 130:55
2002 1026 311:10
2003 919 434:00
2004 6511 539:15
2005 3196 741:30
2006 5534 671:30
2007 7495 742:30
2008 8352 700:00
2009 7752 629:45
2010 4920 570:15
2011 6051 520:15
2012 6736 543:15
2013 6625 410:30
2014 3140 500:15
2015 5313 683:45
2016 3497 688:45
2017 4146 671:00
2018 13985 739:00
2019 5894 737:00
2020 5128 795:00
2021 4093 787:15
2022 3882 648:40
2023 0 84:42
 
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