Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 1 66:45
1998 4 46:00
1999 0 79:15
2000 5 114:15
2001 10 119:45
2002 5 311:15
2003 15 433:15
2004 61 539:15
2005 44 741:30
2006 50 671:30
2007 69 742:30
2008 26 700:00
2009 25 629:45
2010 76 570:15
2011 21 520:15
2012 25 543:15
2013 51 410:30
2014 62 500:15
2015 136 683:45
2016 65 688:45
2017 58 671:00
2018 32 739:00
2019 43 731:30
 
Partners