Graph

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

Year Totals Observation hours
2008 119 114:43
2009 132 480:00
2010 81 520:00
2011 139 557:53
2012 111 707:17
2013 256 545:56
2014 153 551:02
2015 397 584:04
2016 140 622:09
2017 212 588:13
2018 234 681:33
2019 347 723:16
2021 295 640:08
2022 2 558:40
 
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