Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 114 66:45
1998 11 46:00
1999 52 79:15
2000 82 114:15
2001 54 119:45
2002 393 311:15
2003 430 433:15
2004 978 539:15
2005 2710 741:30
2006 870 671:30
2007 1877 742:30
2008 1829 700:00
2009 2052 629:45
2010 2344 570:15
2011 3256 520:15
2012 2161 543:15
2013 1198 410:30
2014 824 500:15
2015 2393 683:45
2016 1323 688:45
2017 859 671:00
2018 1732 739:00
2019 1421 548:00
 
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