Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 11 23:40
2007 73 71:05
2008 142 94:25
2009 142 91:45
2010 208 159:55
2011 120 208:42
2012 332 196:45
2013 88 239:26
2014 105 218:15
2015 41 145:35
2016 62 217:52
2017 160 191:09
2018 35 243:43
2019 4 140:00
 
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