Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2007 4504 202:30
2011 5541 755:00
2012 12633 624:00
2014 25123 200:55
2016 36 134:44
2017 75185 533:49
2018 120850 1070:08
2019 21433 215:03
 
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