Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2009 0 32:45
2010 241 370:25
2011 387 504:57
2012 4091 524:55
2013 465 236:55
2014 2578 499:40
2015 14379 528:21
2016 8620 355:25
2017 6835 350:00
2018 3026 365:40
2019 5383 287:15
2020 11296 195:00
 
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