Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 0 66:45
1998 0 46:00
1999 0 79:15
2000 0 114:15
2001 0 119:45
2002 3 311:15
2003 3 433:15
2004 2 539:15
2005 3 741:30
2006 7 671:30
2007 7 742:30
2008 3 700:00
2009 3 629:45
2010 1 570:15
2011 2 520:15
2012 4 543:15
2013 3 410:30
2014 2 500:15
2015 4 683:45
2016 3 688:45
2017 2 671:00
2018 3 739:00
2019 2 445:30
 
Partners