Graph

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

Year Totals Observation hours
2010 6 192:15
2011 6 548:35
2012 7 598:30
2013 3 613:57
2014 10 701:15
2015 9 626:35
2016 6 715:25
2017 15 674:15
2018 21 645:36
2019 26 642:45
2020 1 188:20
2021 22 381:00
2022 20 97:55
2023 24 190:15
 
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