Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2007 211431 202:30
2011 220582 755:00
2012 30341 624:00
2014 963756 200:55
2016 28947 134:44
2017 597593 533:49
2018 1215757 1070:08
2019 408381 215:03
 
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