Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 1 66:45
1998 1 46:00
1999 4 79:15
2000 8 114:15
2001 0 119:45
2002 30 311:15
2003 85 433:15
2004 185 539:15
2005 177 741:30
2006 117 671:30
2007 481 742:30
2008 152 700:00
2009 247 629:45
2010 179 570:15
2011 123 520:15
2012 71 543:15
2013 39 410:30
2014 57 500:15
2015 60 683:45
2016 120 688:45
2017 52 671:00
2018 118 739:00
2019 113 717:00
 
Partners