Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2010 20 192:15
2011 87 548:35
2012 111 598:30
2013 96 613:57
2014 174 701:15
2015 132 626:35
2016 126 715:25
2017 85 674:15
2018 152 645:36
2019 129 642:45
2020 25 188:20
2021 86 381:00
 
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