Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2004 1084 114:30
2007 12354 302:40
2008 55305 348:00
2009 10345 74:00
2010 2673 13:30
2018 13611 246:25
2019 26409 290:45
2020 23083 286:25
2021 27402 207:20
 
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