Graph

Country
Migration site
Species
Period
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 26 23:40
2007 73 71:05
2008 141 94:25
2009 58 91:45
2010 51 159:55
2011 47 208:42
2012 82 196:45
2013 81 239:26
2014 75 218:15
2015 4 145:35
2016 1 217:52
2017 41 191:09
2018 5 243:43
2019 0 140:00
 
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