Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 2 66:45
1998 9 46:00
1999 10 79:15
2000 3 114:15
2001 7 119:45
2002 35 311:15
2003 52 433:15
2004 78 539:15
2005 82 741:30
2006 53 671:30
2007 34 742:30
2008 41 700:00
2009 47 629:45
2010 60 570:15
2011 39 520:15
2012 39 543:15
2013 43 410:30
2014 36 500:15
2015 28 683:45
2016 69 688:45
2017 55 671:00
2018 30 739:00
2019 7 642:45
 
Partners