Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1956 8 13:45
1958 0 4:00
1977 35 29:30
1978 10 27:30
1982 0 3:00
1986 0 50:00
1987 19 56:35
2001 0 0:00
2002 0 0:00
2003 104 12:30
2004 1869 44:15
2005 12402 1018:50
2006 4469 647:30
2007 6190 816:41
2008 2665 648:15
2009 3590 446:08
2010 1363 645:00
2011 859 681:30
2012 1412 422:55
2013 2173 613:10
2014 1953 473:05
2015 4134 560:45
2016 1351 427:55
2017 2774 576:05
2018 990 430:45
2019 1285 455:27
2020 698 506:07
2021 1789 771:15
 
Partners