Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 0 63:45
1998 0 48:00
1999 0 79:45
2000 0 114:15
2001 0 130:55
2002 0 311:10
2003 0 434:00
2004 42 539:15
2005 106 741:30
2006 266 671:30
2007 38 742:30
2008 369 700:00
2009 271 629:45
2010 147 570:15
2011 445 520:15
2012 565 543:15
2013 361 410:30
2014 235 500:15
2015 646 683:45
2016 444 688:45
2017 277 671:00
2018 750 739:00
2019 281 737:00
2020 67 718:06
 
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