Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 35 23:40
2007 99 71:05
2008 0 94:25
2009 93 91:45
2010 40 159:55
2011 146 208:42
2012 151 196:45
2013 231 239:26
2014 556 218:15
2015 142 145:35
2016 1779 217:52
2017 138 191:09
2018 427 243:43
2019 0 140:00
 
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