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 99 1018:50
2006 26 647:30
2007 34 816:41
2008 15 648:15
2009 8 446:08
2010 34 645:00
2011 21 681:30
2012 3 422:55
2013 14 613:10
2014 7 473:05
2015 2 560:45
2016 2 427:55
2017 2 576:05
2018 8 430:45
2019 4 455:27
2020 1 506:07
2021 5 771:15
 
Partners