Graph

Country
Migration site
Species
Period    
Sex
 Age
 Plumage
Present
Favourites

Year Totals Observation hours
1956 0 13:45
1958 109 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 94 44:15
2005 1767 1018:50
2006 783 647:30
2007 2729 816:41
2008 2511 648:15
2009 1603 446:08
2010 2154 645:00
2011 774 681:30
2012 1272 422:55
2013 2859 613:10
2014 973 473:05
2015 1734 560:45
2016 1940 427:55
2017 712 576:05
2018 988 430:45
2019 3526 455:27
2020 4293 506:07
2021 4042 676:28
 
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