Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 1957 61:32
2007 3514 211:28
2008 19304 460:04
2009 21042 365:00
2010 10234 637:04
2011 11700 348:08
2012 3410 333:29
2013 6841 281:38
2014 3050 156:47
2015 78 117:20
2016 979 142:02
2017 904 179:22
2018 978 222:16
2019 4320 246:33
2020 7 40:16
 
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