Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 5 23:40
2007 12 71:05
2008 71 94:25
2009 39 91:45
2010 105 159:55
2011 57 208:42
2012 63 196:45
2013 67 239:26
2014 38 218:15
2015 0 145:35
2016 16 217:52
2017 7 191:09
2018 40 243:43
2019 6 191:56
 
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