Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2007 360 202:30
2011 1717 755:00
2012 414 624:00
2014 5719 200:55
2016 308 134:44
2017 3498 533:49
2018 3017 1070:08
2019 995 215:03
 
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