Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2009 50 32:45
2010 1198 370:25
2011 6305 504:57
2012 15787 524:55
2013 6957 236:55
2014 5553 499:40
2015 11351 528:21
2016 10154 355:25
2017 6699 350:00
2018 3215 365:40
2019 5971 287:15
2020 60 30:30
 
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