Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 15 63:45
1998 4 48:00
1999 2 79:45
2000 9 114:15
2001 21 130:55
2002 71 311:10
2003 150 434:00
2004 26 539:15
2005 20 741:30
2006 5 671:30
2007 1 742:30
2008 1 700:00
2009 4 629:45
2010 0 570:15
2011 1 520:15
2012 0 543:15
2013 1 410:30
2014 11 500:15
2015 2 683:45
2016 0 688:45
2017 2 671:00
2018 0 739:00
2019 0 737:00
2020 4 718:06
 
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