Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2004 25 114:30
2007 1475 302:40
2008 2016 348:00
2009 128 74:00
2010 291 13:30
2018 167 246:25
2019 498 290:45
2020 286 255:45
 
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