Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 2 66:45
1998 7 46:00
1999 0 79:15
2000 4 114:15
2001 2 119:45
2002 61 311:15
2003 107 433:15
2004 118 539:15
2005 177 741:30
2006 74 671:30
2007 114 742:30
2008 132 700:00
2009 74 629:45
2010 132 570:15
2011 138 520:15
2012 198 543:15
2013 141 410:30
2014 104 500:15
2015 283 683:45
2016 370 688:45
2017 339 671:00
2018 492 739:00
2019 656 731:30
 
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