Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1956 1 13:45
1958 0 4:00
1977 1 29:30
1978 0 27:30
1982 0 3:00
1986 0 50:00
1987 3 56:35
2001 0 0:00
2002 0 0:00
2003 0 12:30
2004 0 44:15
2005 23 1018:50
2006 10 647:30
2007 17 816:41
2008 18 648:15
2009 10 446:08
2010 9 645:00
2011 14 681:30
2012 7 422:55
2013 7 613:10
2014 11 473:05
2015 7 560:45
2016 1 427:55
2017 7 576:05
2018 3 430:45
2019 2 455:27
2020 3 506:07
2021 5 615:42
 
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