Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2009 153 32:45
2010 4107 370:25
2011 12626 504:57
2012 11271 524:55
2013 9752 236:55
2014 21647 499:40
2015 14359 528:21
2016 24851 355:25
2017 28182 350:00
2018 13711 365:40
2019 40973 287:15
2020 181 195:00
 
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