Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1956 8 13:45
1958 0 4:00
1977 0 29:30
1978 0 27:30
1982 0 3:00
1986 0 50:00
1987 10 56:35
2001 0 0:00
2002 0 0:00
2003 0 12:30
2004 0 44:15
2005 58 1018:50
2006 54 647:30
2007 69 816:41
2008 79 648:15
2009 68 446:08
2010 64 645:00
2011 223 681:30
2012 56 422:55
2013 152 613:10
2014 97 473:05
2015 42 560:45
2016 62 427:55
2017 55 576:05
2018 60 430:45
2019 87 455:27
2020 27 423:22
 
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