Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2007 23759 202:30
2011 11733 755:00
2012 10665 624:00
2014 18154 200:55
2016 32 134:44
2017 217513 533:49
2018 135591 1070:08
2019 38813 215:03
 
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