Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 324 63:45
1998 3396 48:00
1999 410 79:45
2000 1706 114:15
2001 5570 130:55
2002 6920 311:10
2003 10618 434:00
2004 21484 539:15
2005 14298 741:30
2006 12118 671:30
2007 9115 742:30
2008 15971 700:00
2009 8538 629:45
2010 9737 570:15
2011 7708 520:15
2012 7858 543:15
2013 7041 410:30
2014 9758 500:15
2015 4372 683:45
2016 7352 688:45
2017 5690 671:00
2018 6953 739:00
2019 5910 737:00
2020 5026 703:01
 
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