Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 0 23:40
2007 39 71:05
2008 99 94:25
2009 3 91:45
2010 39 159:55
2011 17 208:42
2012 19 196:45
2013 60 239:26
2014 9 218:15
2015 7 145:35
2016 11 217:52
2017 4 191:09
2018 1 243:43
2019 0 140:00
 
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