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 1 44:15
2005 34 1018:50
2006 4 647:30
2007 11 816:41
2008 16 648:15
2009 4 446:08
2010 1 645:00
2011 20 681:30
2012 1 422:55
2013 5 613:10
2014 13 473:05
2015 17 560:45
2016 7 427:55
2017 6 576:05
2018 11 430:45
2019 7 455:27
2020 3 423:22
 
Partners