Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 192 23:40
2007 551 71:05
2008 161 94:25
2009 181 91:45
2010 124 159:55
2011 897 208:42
2012 820 196:45
2013 752 239:26
2014 1186 218:15
2015 973 145:35
2016 1366 217:52
2017 1662 191:09
2018 2363 243:43
2019 122 140:00
 
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