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 3 130:55
2002 26 311:10
2003 20 434:00
2004 18 539:15
2005 54 741:30
2006 61 671:30
2007 73 742:30
2008 59 700:00
2009 33 629:45
2010 37 570:15
2011 37 520:15
2012 108 543:15
2013 29 410:30
2014 73 500:15
2015 75 683:45
2016 68 688:45
2017 72 671:00
2018 83 739:00
2019 84 737:00
2020 237 771:45
 
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