Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 32 23:40
2007 60 71:05
2008 91 94:25
2009 192 91:45
2010 118 159:55
2011 83 208:42
2012 84 196:45
2013 140 239:26
2014 236 218:15
2015 54 145:35
2016 68 217:52
2017 141 191:09
2018 205 243:43
2019 6 167:21
 
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