Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1956 7 13:45
1958 0 4:00
1977 1749 29:30
1978 163 27:30
1982 0 3:00
1986 223 50:00
1987 22 56:35
2001 0 0:00
2002 0 0:00
2003 0 12:30
2004 31 44:15
2005 2915 1018:50
2006 1480 647:30
2007 474 816:41
2008 2222 648:15
2009 256 446:08
2010 1331 645:00
2011 979 681:30
2012 86 422:55
2013 149 613:10
2014 99 473:05
2015 109 560:45
2016 357 427:55
2017 230 576:05
2018 212 430:45
2019 3 455:27
2020 404 506:07
2021 31 683:43
 
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