Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2004 8 114:30
2007 529 302:40
2008 608 348:00
2009 298 74:00
2010 57 13:30
2018 491 246:25
2019 491 290:45
2020 346 286:25
2021 338 224:50
 
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