Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 1 66:45
1998 0 46:00
1999 0 79:15
2000 5 114:15
2001 7 119:45
2002 4 311:15
2003 8 433:15
2004 17 539:15
2005 22 741:30
2006 15 671:30
2007 14 742:30
2008 25 700:00
2009 22 629:45
2010 20 570:15
2011 25 520:15
2012 13 543:15
2013 17 410:30
2014 24 500:15
2015 18 683:45
2016 19 688:45
2017 8 671:00
2018 17 739:00
2019 15 548:00
 
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