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 3 119:45
2002 62 311:15
2003 68 433:15
2004 58 539:15
2005 68 741:30
2006 90 671:30
2007 96 742:30
2008 38 700:00
2009 102 629:45
2010 48 570:15
2011 26 520:15
2012 108 543:15
2013 94 410:30
2014 70 500:15
2015 60 683:45
2016 124 688:45
2017 34 671:00
2018 155 739:00
2019 75 548:00
 
Partners