Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2007 0 202:30
2011 1500 755:00
2012 1907 624:00
2014 0 200:55
2016 6 134:44
2017 95 533:49
2018 9726 1070:08
2019 260 215:03
 
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