Graph

Country
Migration site
Species
Period
Sex
 Age
 Plumage
Present
Favourites

Year Totals Observation hours
2006 131 23:40
2007 341 71:05
2008 831 94:25
2009 971 91:45
2010 1192 159:55
2011 1052 208:42
2012 1652 196:45
2013 2277 239:26
2014 2081 218:15
2015 917 145:35
2016 1315 217:52
2017 1485 191:09
2018 1676 243:43
2019 636 140:00
 
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