Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2004 245 114:30
2007 1212 302:40
2008 2640 348:00
2009 222 74:00
2010 159 13:30
2018 1155 246:25
2019 1192 290:45
2020 871 286:25
2021 534 207:20
 
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