Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 0 23:40
2007 39 71:05
2008 13 94:25
2009 20 91:45
2010 476 159:55
2011 494 208:42
2012 517 196:45
2013 327 239:26
2014 146 218:15
2015 144 145:35
2016 244 217:52
2017 426 191:09
2018 174 243:43
2019 519 140:00
 
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