Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1956 6 13:45
1958 35 4:00
1977 7 29:30
1978 3 27:30
1982 0 3:00
1986 0 50:00
1987 34 56:35
2001 0 0:00
2002 0 0:00
2003 0 12:30
2004 8 44:15
2005 619 1018:50
2006 233 647:30
2007 409 816:41
2008 156 648:15
2009 245 446:08
2010 293 645:00
2011 1354 681:30
2012 340 422:55
2013 1172 613:10
2014 221 473:05
2015 152 560:45
2016 251 427:55
2017 144 576:05
2018 109 430:45
2019 317 455:27
2020 83 437:32
 
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