Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 0 23:40
2007 0 71:05
2008 0 94:25
2009 15 91:45
2010 12 159:55
2011 20 208:42
2012 220 196:45
2013 24 239:26
2014 69 218:15
2015 85 145:35
2016 483 217:52
2017 116 191:09
2018 140 243:43
2019 101 191:56
 
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