Graph

Country
Migration site
Species
Period
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 0 23:40
2007 19 71:05
2008 0 94:25
2009 0 91:45
2010 2 159:55
2011 16 208:42
2012 32 196:45
2013 14 239:26
2014 1 218:15
2015 7 145:35
2016 2 217:52
2017 0 191:09
2018 3 243:43
2019 0 140:00
 
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