Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2004 20 114:30
2007 518 302:40
2008 441 348:00
2009 26 74:00
2010 3 13:30
2018 265 246:25
2019 375 290:45
2020 290 286:25
2021 659 236:15
 
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