Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2009 43 351:50
2010 31 450:21
2011 32 633:10
2012 22 386:37
2013 17 378:15
2014 21 570:41
2015 26 320:04
2016 14 188:50
2017 9 125:15
2018 6 92:33
2019 17 89:07
 
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