Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 0 66:45
1998 0 46:00
1999 0 79:15
2000 4 114:15
2001 1 119:45
2002 1 311:15
2003 2 433:15
2004 1 539:15
2005 4 741:30
2006 17 671:30
2007 27 742:30
2008 29 700:00
2009 10 629:45
2010 22 570:15
2011 214 520:15
2012 28 543:15
2013 15 410:30
2014 45 500:15
2015 140 683:45
2016 134 688:45
2017 65 671:00
2018 81 739:00
2019 181 548:00
 
Partners