Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites
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Year Totals Observation hours
2006 6 23:40
2007 17 71:05
2008 31 94:25
2009 28 91:45
2010 8 159:55
2011 41 208:42
2012 11 196:45
2013 25 239:26
2014 29 218:15
2015 18 145:35
2016 12 217:52
2017 9 191:09
2018 44 243:43
2019 34 191:56
2020 8 108:23
2021 27 156:10
2022 8 112:25
 
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