Graph

Country
Migration site
Species
Period
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 0 23:40
2007 0 71:05
2008 77 94:25
2009 0 91:45
2010 19 159:55
2011 12 208:42
2012 72 196:45
2013 9 239:26
2014 11 218:15
2015 13 145:35
2016 6 217:52
2017 1 191:09
2018 13 243:43
2019 6 140:00
 
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