Graph

Country
Migration site
Species
Period    
Sex
 Age
 Plumage
Present
Favourites
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Year Totals Observation hours
2006 1 23:40
2007 3 71:05
2008 0 94:25
2009 0 91:45
2010 5 159:55
2011 3 208:42
2012 1 196:45
2013 1 239:26
2014 0 218:15
2015 3 145:35
2016 4 217:52
2017 1 191:09
2018 1 243:43
2019 5 191:56
2020 3 108:23
2021 3 156:10
2022 1 112:25
 
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