Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 34 23:40
2007 85 71:05
2008 110 94:25
2009 303 91:45
2010 302 159:55
2011 572 208:42
2012 500 196:45
2013 948 239:26
2014 372 218:15
2015 285 145:35
2016 484 217:52
2017 272 191:09
2018 232 243:43
2019 45 140:00
 
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