Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 15 66:45
1998 2 46:00
1999 9 79:15
2000 49 114:15
2001 15 119:45
2002 25 311:15
2003 184 433:15
2004 201 539:15
2005 280 741:30
2006 217 671:30
2007 426 742:30
2008 136 700:00
2009 304 629:45
2010 188 570:15
2011 118 520:15
2012 208 543:15
2013 165 410:30
2014 134 500:15
2015 138 683:45
2016 124 688:45
2017 170 671:00
2018 267 739:00
2019 146 653:30
 
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