Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 36 23:40
2007 196 71:05
2008 117 94:25
2009 761 91:45
2010 244 159:55
2011 369 208:42
2012 133 196:45
2013 2655 239:26
2014 418 218:15
2015 79 145:35
2016 382 217:52
2017 100 191:09
2018 592 243:43
2019 6 140:00
 
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