Graph

Country
Migration site
Species
Period    
Sex
 Age
 Plumage
Present
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Year Totals Observation hours
2006 14 23:40
2007 237 71:05
2008 0 94:25
2009 0 91:45
2010 1 159:55
2011 0 208:42
2012 0 196:45
2013 13 239:26
2014 0 218:15
2015 0 145:35
2016 25 217:52
2017 26 191:09
2018 78 243:43
2019 0 191:56
2020 4 108:23
2021 10 156:10
2022 12 112:25
 
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