Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 8 66:45
1998 1 46:00
1999 4 79:15
2000 73 114:15
2001 5 119:45
2002 101 311:15
2003 414 433:15
2004 247 539:15
2005 160 741:30
2006 119 671:30
2007 276 742:30
2008 133 700:00
2009 171 629:45
2010 223 570:15
2011 181 520:15
2012 519 543:15
2013 341 410:30
2014 366 500:15
2015 472 683:45
2016 467 688:45
2017 314 671:00
2018 364 739:00
2019 298 731:30
 
Partners