Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 7 66:45
1998 2 46:00
1999 3 79:15
2000 1 114:15
2001 29 119:45
2002 37 311:15
2003 221 433:15
2004 73 539:15
2005 312 741:30
2006 24 671:30
2007 85 742:30
2008 246 700:00
2009 71 629:45
2010 165 570:15
2011 36 520:15
2012 634 543:15
2013 1302 410:30
2014 132 500:15
2015 91 683:45
2016 12 688:45
2017 200 671:00
2018 81 739:00
2019 166 638:15
 
Partners