Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2004 164 114:30
2007 6021 302:40
2008 3088 348:00
2009 1225 74:00
2010 167 13:30
2018 2424 246:25
2019 3645 290:45
2020 2811 255:45
 
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