Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 112 23:40
2007 10 71:05
2008 56 94:25
2009 158 91:45
2010 29 159:55
2011 43 208:42
2012 86 196:45
2013 26 239:26
2014 100 218:15
2015 37 145:35
2016 80 217:52
2017 39 191:09
2018 53 243:43
2019 7 191:56
 
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