Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 3 66:45
1998 0 46:00
1999 7 79:15
2000 11 114:15
2001 15 119:45
2002 14 311:15
2003 7 433:15
2004 9 539:15
2005 53 741:30
2006 32 671:30
2007 20 742:30
2008 147 700:00
2009 55 629:45
2010 50 570:15
2011 169 520:15
2012 97 543:15
2013 32 410:30
2014 468 500:15
2015 273 683:45
2016 304 688:45
2017 189 671:00
2018 209 739:00
2019 323 638:15
 
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