Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2004 31 114:30
2007 127 302:40
2008 67 348:00
2009 15 74:00
2010 11 13:30
2018 93 246:25
2019 166 290:45
2020 161 286:25
2021 104 224:50
 
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