Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1956 0 13:45
1958 0 4:00
1977 184 29:30
1978 1 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 2 44:15
2005 4185 1018:50
2006 1006 647:30
2007 1045 816:41
2008 458 648:15
2009 906 446:08
2010 364 645:00
2011 244 681:30
2012 116 422:55
2013 209 613:10
2014 97 473:05
2015 117 560:45
2016 183 427:55
2017 698 576:05
2018 227 430:45
2019 39 455:27
2020 94 506:07
2021 3471 676:28
 
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