Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2010 179 192:15
2011 1493 548:35
2012 1469 598:30
2013 1249 613:57
2014 2111 701:15
2015 1403 626:35
2016 2321 715:25
2017 501 674:15
2018 730 645:36
2019 577 642:45
2020 140 188:20
2021 416 381:00
2022 23 97:55
 
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