Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 4 23:40
2007 5 71:05
2008 3 94:25
2009 0 91:45
2010 103 159:55
2011 516 208:42
2012 164 196:45
2013 169 239:26
2014 504 218:15
2015 160 145:35
2016 194 217:52
2017 155 191:09
2018 242 243:43
2019 1412 140:00
 
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