Graph

Country
Migration site
Species
Period
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 0 23:40
2007 0 71:05
2008 0 94:25
2009 0 91:45
2010 8 159:55
2011 10 208:42
2012 10 196:45
2013 5 239:26
2014 15 218:15
2015 77 145:35
2016 44 217:52
2017 44 191:09
2018 8 243:43
2019 30 140:00
 
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