Graph

Country
Migration site
Species
Period
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 10 23:40
2007 22 71:05
2008 65 94:25
2009 28 91:45
2010 30 159:55
2011 50 208:42
2012 76 196:45
2013 68 239:26
2014 28 218:15
2015 11 145:35
2016 41 217:52
2017 57 191:09
2018 64 243:43
2019 1 140:00
 
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