Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1956 0 13:45
1958 0 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 5 12:30
2004 0 44:15
2005 346 1018:50
2006 211 647:30
2007 285 816:41
2008 165 648:15
2009 117 446:08
2010 99 645:00
2011 69 681:30
2012 37 422:55
2013 128 613:10
2014 107 473:05
2015 165 560:45
2016 148 427:55
2017 307 576:05
2018 82 430:45
2019 95 455:27
2020 30 423:22
 
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