Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites
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Year Totals Observation hours
2010 807 192:15
2011 1683 548:35
2012 1422 598:30
2013 2986 613:57
2014 6480 701:15
2015 3894 626:35
2016 4730 715:25
2017 4081 674:15
2018 4172 645:36
2019 3866 642:45
2020 290 188:20
2021 1754 381:00
2022 255 97:55
 
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