Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 63 23:40
2007 176 71:05
2008 208 94:25
2009 288 91:45
2010 186 159:55
2011 369 208:42
2012 144 196:45
2013 174 239:26
2014 561 218:15
2015 202 145:35
2016 525 217:52
2017 406 191:09
2018 350 243:43
2019 170 191:56
 
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