Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 2 23:40
2007 0 71:05
2008 0 94:25
2009 1 91:45
2010 2 159:55
2011 7 208:42
2012 4 196:45
2013 2 239:26
2014 0 218:15
2015 4 145:35
2016 3 217:52
2017 1 191:09
2018 3 243:43
2019 4 140:00
 
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