Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1956 0 13:45
1958 0 4:00
1977 3 29:30
1978 0 27:30
1982 0 3:00
1986 0 50:00
1987 2 56:35
2001 0 0:00
2002 0 0:00
2003 0 12:30
2004 22 44:15
2005 26 1018:50
2006 25 647:30
2007 11 816:41
2008 6 648:15
2009 12 446:08
2010 8 645:00
2011 40 681:30
2012 12 422:55
2013 40 613:10
2014 19 473:05
2015 14 560:45
2016 29 427:55
2017 12 576:05
2018 11 430:45
2019 13 455:27
2020 17 397:09
 
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