Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1956 0 13:45
1958 0 4:00
1977 0 29:30
1978 0 27:30
1982 0 3:00
1986 0 50:00
1987 0 56:35
2001 0 0:00
2002 0 0:00
2003 0 12:30
2004 0 44:15
2005 1813 1018:50
2006 1 647:30
2007 32 816:41
2008 0 648:15
2009 0 446:08
2010 372 645:00
2011 0 681:30
2012 275 422:55
2013 600 613:10
2014 33 473:05
2015 2 560:45
2016 0 427:55
2017 20 576:05
2018 0 430:45
2019 0 455:27
2020 200 506:07
2021 0 806:20
 
Partners