Graph

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

Year Totals Observation hours
2010 1 192:15
2011 4 548:35
2012 12 598:30
2013 17 613:57
2014 11 701:15
2015 9 626:35
2016 3 715:25
2017 11 674:15
2018 4 645:36
2019 9 642:45
2020 2 188:20
2021 5 381:00
2022 2 97:55
2023 2 190:15
 
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