Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 0 23:40
2007 8 71:05
2008 36 94:25
2009 12 91:45
2010 8 159:55
2011 0 208:42
2012 41 196:45
2013 63 239:26
2014 33 218:15
2015 1 145:35
2016 2 217:52
2017 2 191:09
2018 4 243:43
2019 3 191:56
 
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