Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2009 0 32:45
2010 12 370:25
2011 26 504:57
2012 26 524:55
2013 7 236:55
2014 30 499:40
2015 33 528:21
2016 57 355:25
2017 6 350:00
2018 11 365:40
2019 24 287:15
2020 46 370:55
2021 9 170:30
 
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