Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2009 23 351:50
2010 27 450:21
2011 16 633:10
2012 8 386:37
2013 4 378:15
2014 16 570:41
2015 20 320:04
2016 4 188:50
2017 0 125:15
2018 5 92:33
2019 1 89:07
 
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