Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2009 6 351:50
2010 72 450:21
2011 61 633:10
2012 25 386:37
2013 36 378:15
2014 50 570:41
2015 26 320:04
2016 35 188:50
2017 2 125:15
2018 12 92:33
2019 1 89:07
 
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