Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2004 147 114:30
2007 478 302:40
2008 661 348:00
2009 182 74:00
2010 12 13:30
2018 133 246:25
2019 205 290:45
2020 370 286:25
2021 163 211:50
 
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