Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 34 23:40
2007 160 71:05
2008 206 94:25
2009 113 91:45
2010 163 159:55
2011 168 208:42
2012 151 196:45
2013 247 239:26
2014 300 218:15
2015 131 145:35
2016 121 217:52
2017 177 191:09
2018 155 243:43
2019 61 140:00
 
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