Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2010 5 192:15
2011 9 548:35
2012 19 598:30
2013 23 613:57
2014 64 701:15
2015 25 626:35
2016 34 715:25
2017 48 674:15
2018 38 645:36
2019 51 642:45
2020 6 188:20
2021 30 381:00
 
Partners