Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 2130 23:40
2007 5979 71:05
2008 19059 94:25
2009 12719 91:45
2010 10009 159:55
2011 14286 208:42
2012 2750 196:45
2013 1465 239:26
2014 12108 218:15
2015 3319 145:35
2016 1977 217:52
2017 4314 191:09
2018 4656 243:43
2019 270 140:00
 
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