Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 15 23:40
2007 336 71:05
2008 519 94:25
2009 394 91:45
2010 462 159:55
2011 487 208:42
2012 353 196:45
2013 358 239:26
2014 765 218:15
2015 340 145:35
2016 164 217:52
2017 607 191:09
2018 1374 243:43
2019 126 191:56
 
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