Graph

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

Year Totals Observation hours
2008 0 360:30
2009 0 450:00
2010 0 500:00
2011 0 590:05
2012 0 846:25
2013 121 669:05
2014 395 653:09
2015 21 628:23
2016 41 664:24
2017 51 653:41
2018 74 697:15
2019 553 1240:41
2020 1085 638:33
2021 104 705:25
2022 601 1041:18
 
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