Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2004 181 114:30
2007 467 302:40
2008 1377 348:00
2009 541 74:00
2010 8 13:30
2018 1218 246:25
2019 943 290:45
2020 1443 286:25
2021 579 207:20
 
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