Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 0 63:45
1998 0 48:00
1999 550 79:45
2000 68 114:15
2001 520 130:55
2002 3243 311:10
2003 2453 434:00
2004 5985 539:15
2005 16868 741:30
2006 4345 671:30
2007 7145 742:30
2008 3822 700:00
2009 3764 629:45
2010 27250 570:15
2011 12693 520:15
2012 18667 543:15
2013 12020 410:30
2014 5379 500:15
2015 9411 683:45
2016 10563 688:45
2017 18295 671:00
2018 14382 739:00
2019 8758 737:00
2020 12894 718:06
 
Partners