Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 9 23:40
2007 21 71:05
2008 73 94:25
2009 26 91:45
2010 62 159:55
2011 26 208:42
2012 34 196:45
2013 19 239:26
2014 18 218:15
2015 9 145:35
2016 15 217:52
2017 8 191:09
2018 13 243:43
2019 2 148:51
 
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