Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2004 303 114:30
2007 17946 302:40
2008 17622 348:00
2009 4347 74:00
2010 2405 13:30
2018 7869 246:25
2019 16890 290:45
2020 7784 258:45
 
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