Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2009 0 32:45
2010 9 370:25
2011 40 504:57
2012 38 524:55
2013 8 236:55
2014 258 499:40
2015 96 528:21
2016 141 355:25
2017 97 350:00
2018 58 365:40
2019 55 287:15
2020 80 370:55
2021 9 142:15
 
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