Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 56 61:32
2007 1342 211:28
2008 1325 460:04
2009 746 365:00
2010 2634 637:04
2011 1715 348:08
2012 1783 333:29
2013 942 281:38
2014 943 156:47
2015 82 117:20
2016 159 142:02
2017 353 179:22
2018 1496 222:16
2019 1693 251:51
2020 1611 326:27
2021 577 172:06
 
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