Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 0 66:45
1998 0 46:00
1999 2 79:15
2000 0 114:15
2001 0 119:45
2002 0 311:15
2003 10 433:15
2004 0 539:15
2005 0 741:30
2006 1 671:30
2007 0 742:30
2008 11 700:00
2009 5 629:45
2010 309 570:15
2011 443 520:15
2012 186 543:15
2013 327 410:30
2014 44 500:15
2015 44 683:45
2016 25 688:45
2017 115 671:00
2018 40 739:00
2019 5 717:00
 
Partners