Graph

Country
Migration site
Species
Period    
Sex
 Age
 Plumage
Present
Favourites
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Year Totals Observation hours
2006 2 23:40
2007 15 71:05
2008 2 94:25
2009 49 91:45
2010 21 159:55
2011 0 208:42
2012 17 196:45
2013 12 239:26
2014 16 218:15
2015 24 145:35
2016 16 217:52
2017 16 191:09
2018 14 243:43
2019 0 191:56
2020 0 108:23
2021 8 156:10
2022 1 112:25
 
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