Graph

Country
Migration site
Species
Period
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 6 23:40
2007 28 71:05
2008 22 94:25
2009 19 91:45
2010 70 159:55
2011 49 208:42
2012 42 196:45
2013 76 239:26
2014 48 218:15
2015 32 145:35
2016 41 217:52
2017 14 191:09
2018 52 243:43
2019 17 140:00
 
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