Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 0 23:40
2007 10 71:05
2008 29 94:25
2009 0 91:45
2010 47 159:55
2011 0 208:42
2012 3 196:45
2013 41 239:26
2014 10 218:15
2015 7 145:35
2016 24 217:52
2017 7 191:09
2018 9 243:43
2019 1 191:56
 
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