Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 3 66:45
1998 4 46:00
1999 3 79:15
2000 6 114:15
2001 6 119:45
2002 12 311:15
2003 11 433:15
2004 15 539:15
2005 26 741:30
2006 22 671:30
2007 36 742:30
2008 28 700:00
2009 13 629:45
2010 27 570:15
2011 30 520:15
2012 14 543:15
2013 17 410:30
2014 44 500:15
2015 22 683:45
2016 36 688:45
2017 23 671:00
2018 22 739:00
2019 66 731:30
 
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