Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 3 23:40
2007 4 71:05
2008 18 94:25
2009 1 91:45
2010 29 159:55
2011 17 208:42
2012 10 196:45
2013 7 239:26
2014 10 218:15
2015 9 145:35
2016 4 217:52
2017 9 191:09
2018 2 243:43
2019 2 140:00
 
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