Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 0 61:32
2007 6 211:28
2008 81 460:04
2009 219 365:00
2010 72 637:04
2011 199 348:08
2012 147 333:29
2013 48 281:38
2014 97 156:47
2015 11 117:20
2016 73 142:02
2017 43 179:22
2018 69 222:16
2019 0 112:27
 
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