Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 0 61:32
2007 2 211:28
2008 11 460:04
2009 22 365:00
2010 15 637:04
2011 13 348:08
2012 11 333:29
2013 3 281:38
2014 0 156:47
2015 5 117:20
2016 1 142:02
2017 6 179:22
2018 3 222:16
2019 4 106:24
 
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