Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 1 61:32
2007 1 211:28
2008 5 460:04
2009 2 365:00
2010 11 637:04
2011 15 348:08
2012 6 333:29
2013 6 281:38
2014 4 156:47
2015 2 117:20
2016 3 142:02
2017 0 179:22
2018 9 222:16
2019 8 246:33
 
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