Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 4708 66:45
1998 6691 46:00
1999 2149 79:15
2000 787 114:15
2001 2850 119:45
2002 5114 311:15
2003 6493 433:15
2004 13499 539:15
2005 14472 741:30
2006 9426 671:30
2007 12732 742:30
2008 8571 700:00
2009 6071 629:45
2010 28944 570:15
2011 10425 520:15
2012 7177 543:15
2013 10978 410:30
2014 3196 500:15
2015 8901 683:45
2016 13314 688:45
2017 10592 671:00
2018 32632 739:00
2019 2009 548:00
 
Partners