Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2009 4 32:45
2010 5 370:25
2011 54 504:57
2012 43 524:55
2013 60 236:55
2014 74 499:40
2015 41 528:21
2016 230 355:25
2017 63 350:00
2018 51 365:40
2019 43 287:15
2020 89 370:55
2021 37 170:30
 
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