Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2010 248 192:15
2011 364 548:35
2012 368 598:30
2013 735 613:57
2014 928 701:15
2015 859 626:35
2016 942 715:25
2017 841 674:15
2018 509 645:36
2019 1012 642:45
2020 121 188:20
2021 454 381:00
 
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