Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites
Don't use roostmigration

Year Totals Observation hours
2010 16 192:15
2011 3 548:35
2012 44 598:30
2013 24 613:57
2014 30 701:15
2015 62 626:35
2016 50 715:25
2017 46 674:15
2018 24 645:36
2019 43 642:45
2020 2 188:20
2021 22 381:00
2022 18 97:55
 
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