Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 1 23:40
2007 3 71:05
2008 7 94:25
2009 10 91:45
2010 12 159:55
2011 28 208:42
2012 58 196:45
2013 20 239:26
2014 36 218:15
2015 16 145:35
2016 6 217:52
2017 7 191:09
2018 8 243:43
2019 40 191:56
 
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