Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 10 63:45
1998 0 48:00
1999 2 79:45
2000 1 114:15
2001 70 130:55
2002 1 311:10
2003 52 434:00
2004 0 539:15
2005 1230 741:30
2006 0 671:30
2007 81 742:30
2008 659 700:00
2009 1 629:45
2010 234 570:15
2011 0 520:15
2012 2063 543:15
2013 225 410:30
2014 13 500:15
2015 453 683:45
2016 0 688:45
2017 95 671:00
2018 5 739:00
2019 6 737:00
2020 14 795:00
2021 0 409:20
 
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