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 7 114:15
2001 9 130:55
2002 8 311:10
2003 13 434:00
2004 8 539:15
2005 5 741:30
2006 3 671:30
2007 3 742:30
2008 3 700:00
2009 1 629:45
2010 26 570:15
2011 10 520:15
2012 14 543:15
2013 11 410:30
2014 12 500:15
2015 3 683:45
2016 2 688:45
2017 3 671:00
2018 8 739:00
2019 7 737:00
2020 6 795:00
2021 0 19:15
 
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