Graph

Country
Migration site
Species
Period
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 0 23:40
2007 2 71:05
2008 5 94:25
2009 1 91:45
2010 23 159:55
2011 20 208:42
2012 31 196:45
2013 10 239:26
2014 6 218:15
2015 2 145:35
2016 4 217:52
2017 3 191:09
2018 10 243:43
2019 18 140:00
 
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