Graph

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

Year Totals Observation hours
2010 32 192:15
2011 12 548:35
2012 26 598:30
2013 21 613:57
2014 46 701:15
2015 40 626:35
2016 97 715:25
2017 56 674:15
2018 54 645:36
2019 32 642:45
2020 0 188:20
2021 19 381:00
2022 1 97:55
2023 8 190:15
 
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