Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2009 0 32:45
2010 491 370:25
2011 821 504:57
2012 1593 524:55
2013 114 236:55
2014 561 499:40
2015 182 528:21
2016 227 355:25
2017 348 350:00
2018 1148 365:40
2019 1409 287:15
2020 82 30:30
 
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